Top Five STA-BIL Product Myths Debunked

Don't worry about gasoline expiration - use STA-BIL Fuel Additives. If you’ve ever looked for the best way to add years of life to your lawn equipment, prevent marine engine corrosion or safely store your classic car, you’ve heard of the STA-BIL® Brand.

For more than five decades, this household product has kept millions of gallons of fuel from going bad and saved thousands of engines from preventable repairs.

But there’s a flip side. Any time a brand becomes this widely known, it’s bound to attract creative observations and folklore. We’ve heard them all, from the comical to absurd. With some myths still floating around, we’ve decided to set the record straight.

Here are the top five myths we’ve heard, and how they’re mistaken:

Myth #1: “STA-BIL contains alcohol.”

STA-BIL fuel treatment products—including our fuel stabilizer, ethanol treatment, marine formula and diesel fuel stabilizer—contain proprietary ingredients. While we can’t share the full list (it’s a trade secret), we can tell you that alcohol is NOT one of them.

Our fuel stabilizers and treatments each contain a powerful mix of additives and chemicals that neutralize acids, prevent gasoline from oxidizing and coat metal surfaces to prevent corrosion.

Every product in the STA-BIL brand family performs a different function. Each one is specially formulated to treat a specific type of fuel, from pure gasoline to ethanol blends and every type of engine, from lawnmower to boat to classic car.

Myth #2: “STA-BIL products don’t work with ethanol-blended gasoline.”

STA-BIL products treat ALL types of fuel—and that includes every ethanol blend, from E-10 to E-85, as well as pure gasoline and diesel. This is widely known in the Midwestern area of the United States, where our manufacturing plant is based and ethanol-blended gasoline has been used for nearly three decades.

The rest of the country is still relatively new to the idea of ethanol-blended fuel, which the government began mandating in recent years to reduce America’s dependence on foreign oil.

The misunderstandings began mostly in warm-weather climates such as the Southeast, where humidity increases the likelihood that water will collect in gas tanks and lead to corrosion. Blended gasoline can heighten this issue because ethanol is an alcohol that absorbs moisture from the atmosphere.

This is especially a concern with equipment that tends to sit between uses, like boats or lawnmowers.

Old Fuel and Phase Separation

STA-BIL will absolutely work in these conditions, as long as you have the right formula (see our answer to myth #3, below). Our special marine formula is made exclusively for nautical conditions, and the daily-use ethanol treatment (link to post titled “Considering ethanol-free gas? Try an ethanol treatment instead.”) is designed to be used with every fill up.

Myth #3: “All STA-BIL products are the same, just different colors.”

Nope. Each product is specially designed to address and prevent a unique set of problems.

STA-BIL Storage fuel stabilizer keeps fuel fresh for extended periods – up to 24 months.

STA-BIL 360° PERFORMANCE protects against ethanol-related damage and provides a boost in performance and mileage economy if used at every fill-up.

And our STA-BIL°360 MARINE fuel additive protects and helps engines that perform in the damaging, water-laden environment marine equipment faces every day.

Both STA-BIL 360° Formulas will keep fuel fresh up to 12 months and provide protection to the entire fuel system – above and below the fuel line. So in the end, it all depends on what you would like to focus on -prolonged longevity, power/fuel economy or condensation management.

Myth #4: “STA-BIL branded products are just kerosene.”

Here’s our official answer, direct from Chief Chemist and V.P. Of Product Engineering Mike Profetto:

“STA-BIL brand additives use a highly-purified petroleum distillate to deliver our additive package to the fuel. This solvent allows the additives to quickly blend completely into the fuel. The additives themselves would be too concentrated to blend easily, especially in cold weather. Use of more flammable solvents like gasoline would make shipping and storage too dangerous. The addition of the recommended dose of STA-BIL product to fuel has always been safe. Dozens of Original Equipment Manufacturers (OEMs) have confirmed this by testing and recommending our products.”

Myth #5: “STA-BIL Branded Products gunk up carburetors.”

If your equipment’s fuel system is already dirty and you’ve never used a fuel system cleaner, it’s possible the cleaning agents in a STA-BIL product will wash the dirt and grime off walls and into the fuel system. This is a common issue with older equipment and can end up clogging the carburetor.

If you’re facing this problem, we recommend running a high-quality fuel system cleaner through at least one tank of fuel before you store your vehicle equipment.

What myths have you heard?

Try a free bottle of sta-bil today.
 

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177 Comments

  • Can Sta Bil 360 be used for diesel engines?


  • Two questions:
    1) At what elevated concentration levels does Stabil become a problem? Is there any value in using more Stabil when storing vehicles for a longer time (more than 1 year).
    2) When storing vehicles for extended time, is Stabil consumed (used up)? If so, should additional Stabil be added each year to the same tank to”refresh” the old fuel?


    • I’d siphon the old out and use it in my daily driver and put fresh stabilized gas back into the stored vehicle.


    • Hello, STA-BIL® Storage keeps fuel fresh for up to 24 months. After the 24 months we recommend either using the fuel or draining. Also, adding more STA-BIL® then the recommended dosage amount does not provide extra benefits or make the storage period longer.


  • The 32 gallon gas tank in my RV has about 26 gallons that are about a month old. I want to stabilize it for the winter, but the instructions on the stabilizer say it must be added to fresh gas. Must I trash 26 gallons?
    Thanks for any advice.
    Doron Antrim


    • Hi Doron, No – you do not have to trash your 26 gallons. You can use the gas. STA-BIL will keep it in its current state and it won’t continue to go bad. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


      • put it in and drive around I have old cars and drive to the store fill it up but put in stilb frist then part it for 8-9 month and cranjk it up and go been using the storage for years and no problems at all use it but it needs to in the carb. so adding it and not drive is not right


    • STA-BIL® Storage keeps fuel fresh for up to 24 months. After the 24 months we recommend either using the fuel or draining. Also, all STA-BIL® products do not make old gas fresh again. Please contact us at marketing@goldeagle.com if you have any questions about this.Thank you.


  • My husband added stabil to the gas to winterize the mowers, Can I use this gas in my car too?


    • Hello, yes you can use the gas in your car if your husband treated it with STA-BIL 360 Performance, STA-BIL Storage, or STA-BIL Marine. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • 4 questions:
    1. Can Sta Bil diesel fuel treatment be used to treat gasoline? If so, does it make any difference whether the gasoline does or does not contains ethanol?
    2. If my diesel fuel already contains some Sta Bil diesel fuel stabilizer, will there be a problem in adding FPPF Fuel Power for winter storage, after filling the tank with fresh diesel? (FPPF Fuel Power is the product recommended by Yanmar diesel for winter storage of their diesel engines.)
    3. If not opened, what is the shelf life of Sta Bil gasoline fuel treatment and Sta Bil diesel fuel treatment?
    4. Once opened, what is the shelf life of Sta Bil gasoline fuel treatment and Sta Bil diesel fuel treatment?
    Thank you.


    • 1. No. STA-BIL® Diesel is not recommended for regular gasoline -only diesel fuel. The consistency and chemicals are not compatible with regular fuel.
      2. This should be fine, as long as the recommended amount for both is used. Do not overdose!
      3. We recommend using it within 8 years from purchasing.
      4. Once opened, it will have a shelf life of two years.

      Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • I have a high performance Corvette running on E85. It’s stored for 4 months a year. What do you recommend.


    • Hello. Use STA-BIL 360® Performance™. It is effective in E85 fuel. It will keep it fresh for up to 12 months and protect against corrosion, rust and any additional condensation that may form due to the high level of ethanol. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • I noticed that on the bottle it says, “…for up to 12 months.” But here you say, “STA-BIL® Storage fuel stabilizer keeps fuel fresh for extended periods – up to 24 months.
    So, which is it?

    Also, I have some left over about 2 years old. Will it hurt to use it instead of dumping it?


    • We have tested STA-BIL® Storage and determined that it will keep fuel stabilized for 24 months. This is reflected on all new labels. However, this also applies to older labels. You can certainly use the product you have as it should still be good to use after about 2 years. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • Can I use my Stabil Marine 360 in my motorcycle which will sit for approximately 5 months during the winter?


    • Hi Cee,
      Yes you can – just be sure to use the correct treatment ratio. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • I just bought a new Honda generator for use during power blackouts, and am looking for the right Sta-Bil product to keep the gas clean, water-free, and ready to power my genny when a big winter storm knocks the power lines down — which happens every winter up here. My house is in a heavily forested area north of San Francisco — a very humid environment with heavy fog, mist, and around 60 inches of rain each year. Under these moist conditions, I’m thinking that Sta-Bil Marine formlua might work best for me. What do you think?


    • Hi Micheael,
      STA-BIL 360 Marine is specially formulated for high-humidity environments so yes, you are correct. That would be the best product for your generator in your environment. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • I’ve got a vw based sand rail that sits for the most part during the winter months, only occasionally started and running 110 octane gas. What Stabil product would be most appropriate for this application?


    • STA-BIL® Storage or STA-BIL ® Performance™ would be appropriate for stabilizing the fuel to keep it as fresh as possible for infrequent use.


  • Is there an expiration on using sta-bil? Does it have to be used within a certain time?


    • Hi Ken, all STA-BIL products have a shelf life of two years from the time of opening. Please contact us at marketing@goldeagle.com if you have any questions. Thank you.


  • I have a full tank of fuel in my boat and was thinking about adding Sta-Bil. Do I need to mix the Sta-Bil with the fuel in some way or does the Sta-Bil disperse when added to the fuel in the tank? Also, do I need to start the outboard motor to run the Sta-Bil/fuel mix through the system?


    • Hi Neil, all you have to do is run your engine for about five minutes after adding the STA-BIL and you will be all set! Please email us at marketing@goldeagle.com if you have any questions! Thank you.


  • I heard that stabil was just an enzyme and has to be agitated every so often to work. ive used stabil storage every winter and never had a problem. just curious about a friends claim.


    • Hi Jeff, No. STA-BIL is a petroleum based product that will dissolve itself in gasoline without the need to shake, stir, or swish the fuel. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you!


  • I have a Class C Motor home with a Ford V10. It also has an Onan 400KW generator. I use a couple times a year Sea Foam to clean things up. My question is I am thinking of applying Sta-Bil in the fuel tank for the time it sets this winter. I have already put the recommended amount of Sea Foam in the fuel tank. Would you think it is safe to put both products together??


    • Hi Phil, as they are both petroleum based it should be fine. Please contact us at marketing@goldeagle.com if you have any questions about this, thank you.


  • I use sta- bil storage for my antique motorcycles to preserve the fuel and protect against ethanol damage to carburetors and associated parts. Is this the right product or should I be using performance?


    • Hi John, we recommend using STA-BIL Storage for long term storage while the motorcycle is not in use. If you still use it regularly, we would recommend STA-BIL 360 Performance. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • How long is a bottle of sta bil “good”? I have a bottle I purchased 3 years ago is it still usable? It is not in fuel.


    • Hi Tom,
      All STA-BIL Products have a shelf life of two years from the time of opening. If unopened, it is still good to use as long as there are no sediments or solids at the bottom of the bottle. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • Hello,

    I recently purchased a dirtbike for my daughter. I’m very involved with the machine. I bought a new carb, fuel petcock and fuel line for it when I bought the bike (used machine) due to the gum and varnish buildup, and cleaned out the tank with carb cleaner prior to filling it up. As far as gas for all the toys, my routine (I never deviate from this, no exceptions) is to put 3 ounces of STABIL STORAGE in a 5 gallon plastic motorsports jug and then fill with exactly 5 gallons of 91. I use the gas as needed on the rides, and pour the leftover gas from the motorsport jug into the cars. I am about 50/50 as to whether or not the bikes’ gas tanks are emptied. I do if they are going to sit for a few months, otherwise, I leave the gas in the tanks. They sit on average a few weeks to a month at a time without running. The problem I am having is I still have to disassemble the carb on the little bike and clean it frequently so that it runs properly. It’s by no means a lot of crud and varnish, but there is definitely a green film inside the entirety of the carb. My question is this: should I be using STABIL 360, or will the STABIL STORAGE perform the same? I will not need 24 months of protection, but if the STORAGE is superior, I will keep using that. Is there anything else I can do to correct this with fuel additives? I’m thinking about switching to race fuel just for the cleanliness, but it comes with it’s own issues (no detergents or lubes for the engine). Thoughts? P.S. – I’m really looking for a more technical answer, not an advertising one. If there are additives more suited, I’ll use those… If there is no way to entirely keep the fuel from degrading, I’ll probably switch to a more controlled fuel… Would draining the bike’s tank after every use remove the requirement to use a stabilizer, or will I still have residues in the carb? Any help in this matter would be greatly appreciated.

    Tai


    • Hi Tai. For long-term storage we would recommend STA-BIL Storage. For more every-day usage we would recommend STA-BIL 360 Peformance. It has a vapor corrosion inhibitor that will protect your fuel tank both above and below the fuel line. We also do not recommend draining your fuel tank. We recommend keeping it 95% full and treating it with STA-BIL before storage. Please contact us at marketing@goldeagle.com if you have any questions. We are happy to help.


  • Does Stabil harm the catalytic converter??


    • Hi Walt, No. Neither will it negatively affect sensors or any part of the fuel system. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • i use stabill 360 in all the boats and eqipment at the boat yard my question is at what point does over dose become aproblem some times coustomer already put it in and dont tell me


    • Hi Dave, it is ok if you over treat by two or even three times the recommended amount. Please let us know if you have any questions at marketing@goldeagle.com


  • I have read that, if my treated gas with Stabil is shaken, it will lose it’s ability to protect the gasoline.
    Is this true ?


    • Hi Paul. STA-BIL does not separate from the fuel or is affected by the fuel’s movement. It will still work even if the vehicle is being driven. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • Is there any harm done if I out too much fuel stabilizer in about a ounce too much


    • Hi Mike, there is no harm in over treating by two or even three times the recommended amount. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • I’m using Sta-bil for the first time and was wondering how much I should use for one gallon, as that is the size of my gas can. Would it cause problems if I just dumped in one ounce for 1 gallon?


    • Hi Wayne, you should be good with 1/2 ounce of STA-BIL if your fuel tank is only a gallon. It is ok if you accidentally over treat by two or even three times the recommended amount. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • I regularly use STA-BIL Fuel Stabilizer for Gasoline in all my vehicles, and Power Equipment. I want to ensure that water from condensation in the tank is also eliminated. Does STA-BIL Fuel Stabilizer for Gasoline also do this, or can you recommend another Gold Eagle product which I can use regularly along side STA-BIL Fuel Stabilizer for Gasoline to eliminate water from condensation. Thanks!


    • Hi Mark, If the main concern is to prevent condensation issues such as corrosion, rust and water accumulation, while keeping the fuel fresh up to 12 months, we highly recommend treating your fuel with STA-BIL 360® Performance. STA-BIL® Storage (red) is focused only on long-term stabilization (up to 24 months). Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • I have used for years lots have had cars sit for up to 3 years . no problem
    but I take and fill them up with no alac. gas (boat gas) then add stilli-bil to it . 8 month is the normal for me to store then I can switch out or winter and summer. never had a problem . it works … I put it in and then fill it up…. by the time I get home it is in carb.


  • Should Sta-Bil be discarded at the end of the summer season if it has been stored in a hot location, such as a closed shed?


    • No. STA-BIL can withstand extreme conditions (up to 150°F) without it being affected. We still recommending using within 2 years of opening for best results.Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • What do you recommend for a snow blower.
    I’m currently using the Storage (red) do I also need to use the Ethanol treatment or is the red enough?


    • Hi Bryan,
      for storing your snowblower during the off-season we would recommend STA-BIL Storage. When it is in-use during the snowy months, we would recommend STA-BIL 360 Performance. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • Do I add the Sta Bil 360 Marine to the 5 gal. gas can I am poring from (pre mix) or directly into the boat tank which holds 80 gal. ?


    • Hi Rol, you can do either. We recommend treating the gas can itself so that all the fuel is treated as soon as you get it. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • STA-BIL(R) 1 Gal RV & Marine Premium Antifreeze , Why did it freeze at 5 * above . Will it burst my pipes ? It says it is good for -75


    • Hi Gary, STA-BIL® RV & Marine Antifreeze will become “slushy” or even become solid at low temperatures. This is completely normal. The concentration of ingredients in the formula that will protect a system against bursting or cracking in as low as -75° F will appear to become solid (crystalize -not freeze) in as low as +10°F (-12°C). Should this happen, simply thaw at room temperature until it regains its liquid state and use as directed. As temperature rises, and the system is ready to be used again, the remaining antifreeze will be ready to be flushed normally. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • Is it OK to use the rest of a bottle of out dated StaBil in my boat gas tank?


    • Hi Ken, all STA-BIL Products have a shelf life of two years from the time of opening. If unopened, it should still be good for 8-10 years as long as there aren’t any solids or sediments at the bottom. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • Have a high end Honda generator stored in my shed. Use Stabil in the gas at twice the recommended ratio since I keep that tank filled year round. I do run the generator for 45 min. – 1 hr. /month to keep things lubricated and make starting easier. For Winter ease of starting (have electric starter) would any harm be done by adding Heet to the tank, or would this be redundant in preventing gas line freeze-up since the only gas available in this area is E-10?


    • We’d suggest having HEET® available should the lines freeze up. HEET® is not intended for long-term storage. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • I ride a 2004 V Star 1100, is it safe for my bike and if so which one would I use. I start my bike 1-2 times a week. Unable to ride here in Maryland. Thank you, Carla


  • Just had a snow thrower salesman tell me that Sta-Bil had alcohol in it, and not to use it. Wanted me to buy a special “storage fuel” that they sell.


    • STA-BIL® Brand stabilizer does not have alcohol and is perfectly safe to use in a snow blower –even if it is a 2-cycle.


  • I store my motorbike at an indoor storage facility which requires that I drain all the gasoline from the tank before storage. Each time after taking the bike out of storage I have trouble running the scooter because the carburetor is all gunked up. Would Stabil help and how do I use it if I need to drain the gasoline from the tank before putting it into storage?


    • Hi John, STA-BIL works best when added to a full tank of fuel before being stored. However, if the storage facility requires an empty tank, we still recommend running STA-BIL 360® Performance because of the Vapor Technology, which coats the entire fuel system preventing corrosion and rust, and stabilizes (as much as it can be done) any fuel residue left in the system. Please contact us at marketing@goldeagle.com if you have any questions.


  • Is it ok to use your product all the Time even when it’s not being stored?


    • Hi Richard, yes – STA-BIL is ok to use all year round. For storing equipment/vehicles, we would recommend using STA-BIL Storage (red). Then, when your equipment/vehicle is being used every day or regularly, we would recommend STA-BIL 360 Performance. Please let us know if you have any questions about this at marketing@goldeagle.com.


  • Can Stabil products designed for diesel fuel be used in Kerosene?


    • Hi Mark, no it cannot. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • I heard that if you put stable in a gas tank and the wind blows over the gas tank it increases the condensation in the gas tank


    • Hi Jack. Outside conditions would have minimal to no effect on a gas thank that has been properly sealed. Condensation happens with the humidity that is inherently in fuel, and the space available in the tank. Please contact us at marketing@goldeagle.com if you have any questions about this.


  • Hi, can STA-BIL Diesel be used in home heating oil tanks? Thanks


    • Hi Paul, While this product was not specifically developed for this purpose, it is safe to use Diesel Formula STA-BIL® in Home Heating Oils. It will work well at keeping the burners clean, removing any water in the fuel and will also help stabilize the fuel, if stored for periods of time. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


      • Does this also include Kerosene?


        • Hi Rob, STA-BIL in Kerosene is not recommended. STA-BIL is only for gasoline (non-ethanol, ethanol and 2 cycle). Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • Can marine grade sta-bil ethanol fuel treatment go bad in the container. I have a bbottle that is no longer the blue color, it is now is a brown color. This is the first time I’ve seen this. Is it OK to use? Thanks Dennis


    • Hi Dennis, Each bottle is good for two years from the time of opening. Unopened, it is good for 5 years. It is normal for the dye of the liquid to change color and this is no indication of the product’s efficiency. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • Does Sta Bil perform well with 2 cycle gas/oil mixes over extended periods of time ?


    • Yes. STA-BIL is effective in all 2-cycle mixes. If treated, the fuel mix will be good for the recommended storage time and the fuel will perform as expected in the equipment. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • Houston Texas area, high humidity, just bought a John Deere Zero Turn Mower, 22hp Briggs and Stratton.
    Which product will be most effective in helping with engine longevity and if I pick your marine grade product will it hurt it since it’s not a marine engine


    • Hi John, it is ok to use on your mower. Our marine formula is more concentrated so we recommend paying close attention to the dosage rates. Please contact us at marketing@goldeagle.com if you have any questions.


  • I use sta-bil year round in all my lawn equipment and in my back up generators. I always keep about 25 gallons of gas that has been treated with Sta-Bil for my generators. Even though I know that the gas will be fine for 24 months. Every six months I take the stored gasoline and put it in my daily driver. I don’t know if Sta-bil has something to do with this, but I have a 16 year old mower that has been running on the same spark plug since it was new. It’s still starts on the second pull. Stable fuel treatment is a top rated product in my books. Thank You.


  • I got a motorcycle that has been stored in a garage for 8 months now. There was no additives added to prolong the life of the gas. The owner always used top tier gas in it. Can a fuel stabilizer help restore the fuel or would it be to late and would it be better to just drain the tank?


    • Unfortunately, STA-BIL will not restore or revitalize this fuel. STA-BIL is meant to be used when the fuel is as fresh as possible to keep it that way for an extended period of time. At this point, perhaps it would be best to properly dispose of this fuel and start fresh to avoid engine issues. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • I don’t know if we will be able to use our boat this year. The mechanic says the stabilizer can’t sit trough the summer it will gunk things up. It was out in last fall. Is this trie?


    • Hi Lee, No. STA-BIL Brand is designed to keep the fuel in the fuel system ready to use within the storage time (24 months for STA-BIL Storage and 12 months for 360 formulas) without having to drain the tank. It does not clog or “gunk up” any part of the system. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • How long does stabilizer last if the gas has not been used?


    • Hi Ronald, STA-BIL® Storage will keep the fuel fresh for up to 24 months in storage. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • I have a Mercury outboard 115 hp that has less than 40 hrs operating time. For the winter storage I added double the concentration of stabil 360 marine, then filled the tank with 30 gallons of gas upon advice of a mercury mechanic. Starting the motor this spring the engine runs rough, will not idle, and is hard to start. Any chance the rich mix SB 360 is causing the problems?


    • Hi Jeff, S360M would not have any negative effects-even at 2 times the dosage amount. Please contact us at marketing@goldeagle.com should the problem continues to see if we can offer any assistance or suggestion.


  • I have a couple bottles of the older Sta-Bil fuel stabilizer (not for ethanol fuels). Will it “gunk up” my fuel system if used with ethanol E10 gasoline? If so, I can’t use it. How do I dispose of it?
    Thanks.


    • Hi Bill, Even if the STA-BIL product has exceeded its shelf life, which is 4 years from date of manufacture or 2 years once it has been opened, it can certainly be used in fuel for its cleaning benefits. However, we recommend checking that there is no sediment, gunk or flakes in the liquid, which in such case dispose of the product in accordance to local rules and regulations (call your local City Services) as it is an petroleum-based product.


  • I heard another myth I would like clarifying on. This is what someone at the marina told me, just as I was about to pour some Stabil 360 Marine into my well maintained 2004 Yamaha 60 4 stroke:
    “Do not use Stabil 360 Marine in there, you know that thing where they say it ‘coats above the fuel line’, that will coat all the insides of you motor and ruin it! Coating the inside of the tank is fine, but not the components of the motor!”.
    So there I was putting the lit back on the bottle and throwing it back in my car.
    True? or Myth?
    I really like your product, but before moving forward on my expensive investment, I would like Stabil to clarify on this.
    Thank you.


    • Hi John, This is not true. STA-BIL 360 Marine does not have any negative affect or would damage any part of the fuel system, components and sensors. It has been thoroughly tested for safety and efficiency. The coating is more of a rust inhibitor –not an actual layer that would “ruin” any part of an engine. If there are any questions, please feel free to contact us at producttechsupport@goldeagle.com.


  • If I use a higher dose of Sta-Bil than what’s recomended on the label, will the gasoline/petrol stay fresh even longer? Or am I just wasting money by doing that?


    • Hi Louis, adding more then the recommended amount will not provide any extra benefits. However, over-dosage is safe but we do not recommend adding more then 4 times the recommended amount. Please contact us at marketing@goldeagle.com if you have any questions about this.


  • you state STA-BIL has a shelf life of 2 yrs, and if it keeps gas fresh for 2 years. In that case if I’m using a bottle that I opened 1 yr ago, will it only keep gas fresh for 1 yr?

    If I have a bottle that has been open for 20 months, should I not use for a mower that I plan to store for one yr?


    • Hi Marc, STA-BIL Storage will keep the fuel fresh up to 2 years as long as it is used within 2 years of opening it. If used when the bottle has been opened for 20 months, it will still stabilize the fuel for up to 2 years. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • Wanted to bounce off the question from the person in San Fran and Sta-Bil use in a back-up generator. I’m in Florida and don’t have the weather issues mentioned in CA. Here, it’s just hot and humid. So what is the best Sta-Bil product for this application?


    • Hi Craig, for storage we would recommend the red STA-BIL Storage for your generator. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • Can I use stabil 360 marine with ethanol stabilizer in my boat gas that is non-ethanol gas with oil injection outboard


    • Hi Scott, Yes you can. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.


  • I HAVE SEVERAL 5 GAL GAS CONTAINERS STORED IN MY HOT FLORIDA GARAGE IN CASE OF HURRICANE ETC. THE STORED GAS IF NOT USED IN MY GENERATOR WILL BE USED IN MY 2013 FORD PICKUP. WHICH STA-BIL IS BEST FOR LONG TERM STORAGE FOR ME—MARINE-360-OR STORAGE. I WANT THE BEST AND THE LONGEST LASTING EVEN THOUGH I RUN TREATED GAS THRU MY FORD YEARLY AND START AGAIN WITH FRESH FUEL.


    • Hi and thank you for the question! We recommend STA-BIL® Storage because this will keep the fuel fresh for up to 24 months (the longest amount STA-BIL® will keep fuel fresh). If you have any further questions please email consumer support at producttechsupport.com


  • Hello. Will adding Sta-Bil to 6 month old gasoline help in any way to prevent further deterioration of the fuel? Could doing this actually cause increased deterioration of the fuel at this point? Please note that this applies to a car that became inoperable 6 months ago. I had originally planned to treat the fuel immediately, but never got around to it. Given where I need to have the car parked, I can’t drain the gasoline, so I wondered if adding Sta-Bil to the car’s 6 month old gasoline could at least help my situation. Thank you.


    • Hello! Adding STA-BIL® to older fuel will not make that fuel fresh again but it will help to keep it as is. If you have any other questions please contact consumer support at producttechsupport@goldeagle.com.


  • E85, as I am converting my drag race bracket car to E85, I have heard so many horror stories, ie milky oil from moisture in e85, WHat is best to use on E85 and why?


    • Hello! If you want to stabilize your fuel and/or add protection against rust and other ethanol-related issues, we recommend checking STA-BIL 360 Performance. It is compatible with all ethanol blends –including E85. If you have any other questions please contact consumer support at producttechsupport@goldeagle.com.


  • Should I use sta-bil with non-ethanol premimum ethanol?


    • Hello! Yes, it is perfectly OK to use STA-BIL® with non-ethanol fuel. If you have any other questions please contact consumer support at producttechsupport@goldeagle.com.


  • I just put sta-bil fuel stabilizer for gas into my small diesel engine. will it hurt the engine and should I remove it.


    • Hello! No, adding regular STA-BIL® to Diesel fuel one time will not cause any harm. However, we still recommend to add STA-BIL® Diesel to the fuel so that it can be treated properly. If you have any other questions please contact consumer support at producttechsupport@goldeagle.com


  • What health precautions must one take while using this product


    • Hello, we recommend to follow the directions on the back of the label. If you have any other questions please contact consumer support at producttechsupport@goldeagle.com


  • Can you use Sta-Bil 360 Marine in the cars regular gas?

    Thanks


    • Hello! Yes it is perfectly OK to use in your cars gas and even small engines!


  • Moto-Master concentrated fuel stabilizer (Canadian Tire’s own brand) is the same colour and recommended usage ratio as your Stabil. You are the major supplier to them. Do you manufacture it for them?


    • Hi, Steve! No, we do not supply or manufacture their product. If you have any other questions please contact consumer support at producttechsupport@goldeagle.com.


  • Hello

    I recently added Sta Bil.for storage of fuel. Do I still need to add the ethanol treatment when I am ready to use it in my quads.
    Thank You


    • Hello! Yes, since STA-BIL Storage does not provide protection against ethanol blended fuels then you will want to add the ethanol treatment. If you have any other questions please contact consumer support at producttechsupport@goldeagle.com


  • Do you have a new product out called Rust Stop ? or something similar.


  • Is the following statement true about Sta-bil? I read this on weingartz.com.
    “The problem with [Sta-bil] is that is if the fuel gets bumped, moved, or shifted in any way, that thin film breaks and does not re-seal itself, letting that air and moisture get to your fuel.
    Please advise, thanks.


    • Hi, Don. STA-BIL® does not create a “seal”. It fully dilutes itself in the fuel to prevent the fuel from oxidizing or going stale. If you have any other questions please contact consumer support at producttechsupport@goldeagle.com


  • Is Sta-bil Diesel harmful to Gasoline and engines in place of Sta-bil Marine? why or why not?


    • Hello! STA-BIL® Diesel is not recommended for regular fuel because it is specifically designed for Diesel fuel. Also, if you use STA-BIL Diesel in regular fuel daily/monthly you may experience performance issues. If you have any other questions please contact consumer support at producttechsupport@goldeagle.com.


  • can i use reguler star bil in my boat ? do they both get rid of water


  • I’ve heard that StaBil only floats on the surface and keeps air out of the fuel. That’s it. Can’t see how it protects the fuel system if that’s true.

    Also heard that Seafoam will ruin carburetor vacuum diaphragms.


    • Hi, Thomas. This is not true. STA-BIL® fully dilutes itself into the fuel and prevents the fuel from oxidizing (going stale). If you have any other questions please contact consumer support at producttechsupport@goldeaagle.com. Then in regards to Seafoam, we recommend contacting them directly.


  • Can I add Sta-Bil to 50:1 fuel?


    • Hello! Yes, you can certainly add STA-BIL® to 50:1 fuel.


  • I have used your products,Storage and Performance 360° ,I’ve used Performance 360° in my past cars,I now have a’01 Prius Hybrid and want to know if it’s ok to use it in this car?
    I am using Storage in the gas for Snow Blower(Troy Bilt) and Honda Generator l,I have used 360°,but used that upand was unable to buy more and had to use Storage,should I use up the Gas with Storage in it before switching back to Sta-Bil 360°?
    You have Very Good Products,well worth the Money!


    • Hi, John! Yes, STA-BIL Storage and 360 are compatible with hybrid vehicles that take up to E85 Fuel. They can be mixed so it is OK to treat the fuel if it has already been treated with Storage. Over dosage (within reason) is safe. If you have any other questions please contact consumer support at proudcttechsupport@goldeagle.com


  • Can stabil be used in a dual fuel generator? Regular gas and propane.


    • Hi, Mark. Yes, simply add it to the gasoline. If you have any other questions please contact consumer support at prouducttechsupport@goldeagle.com


  • For a marine inboard diesel; can STA-BIL diesel and STA-BIL diesel biocide be mixed?


  • which is best for winter storage (6 months) of boat fuel (<10% ethanol), regular stabil or marine stabil?


  • I spilled Stabil fuel stabilizer in my concrete driveway. Will it stain permanently? Do I need to clean it? If so, how? Thanks!


    • Hi, Ted. STA-BIL® will eventually evaporate, although this can take some time. For asphalt or concrete, you may use mineral spirits and the rinse with high-pressure water. If you have any other questions please contact consumer support at proudcttechsupport@goldeagle.com


  • Can stable stabilizer be used in Coleman’s white gas for heaters and lanterns?


    • Hi, Craig. We do not recommend STA-BIL® for this type of application or use. If you have any other questions please contact consumer support at proudcttechsupport@goldeagle.com


  • I bought a new generator, and the guy at harborfreight told me not to use it, despite the owners manual specificly saying warranty would be voided if u didn’t. Who to believe!?


  • Is STA-BIL 360 performance safe for oxygen sensors and catalytic converters of new cars. I could not find this listed on the STA-BIL 360 performance information. Thanks for your time.


    • Hello, STA-BIL Storage, STA-BIL 360 Performance/Protection and STA-BIL 360 Marine are all safe to use in a modern vehicle. They will not harm any part of the fuel system, including any sensors, rubber parts and catalytic converters. If you have any other questions please contact consumer support at producttechsupport@goldeagle.com


  • Do I need A stabilizer If I only use non-ethanol gas in my Corvette?


    • Hi, Frank. STA-BIL can be used in both ethanol and non-ethanol. If you plan to store your fuel we do recommend to use STA-BIL so the fuel will stay fresh. If you have any other questions please contact consumer support at proudcttechsupport@goldeagle.com


  • DOES STABIL FUEL HARM OXYGEN SENSORS (ZERO TURN Lawn mower) ?


    • Hi, Steve. STA-BIL® Brand does not damage or interfere with any part of the fuel system, including oxygen sensors. If you have any other questions please contact consumer support at producttechsupport@goldeagle.com


  • 1I would like to know what product is best for my boat. I live in Colorado and would like to store my boat for the winter. Currently have 1/4 tank of 91 octane with 10% ethanol and mixed it with 3/4 tank of 91 octane with no ethanol.


    • Hi, Christian. We recommend STA-BIL 360 Marine. This will keep fuel fresh for up to 12 months during storage. If you have any other questions please contact consumer support at producttechsupport@goldeagle.com


  • Hi- Some “mechanics” in our area have mentioned that Sta-bil can damage rubber components like fuel lines or diaphragms in carburetor. I have used Sta-bil for 25 years in many vehicles but with a lot of products now coming from China- I need to ask the experts. Thank you- Paul


    • Hi, Paul. This is absolutely not true. STA-BIL® Branded products do not contain alcohol or harsh chemicals that would damage any part of the fuel system and engine. This includes seals, gaskets, rubber and metal components. Also, it does not interfere with sensors and catalytic converters. If you have any other questions please contact consumer support at producttechsupport@goldeagle.com


  • Can I use sta-bil in my portable generator


    • Hi, Diane. Yes, it is perfectly OK to use STA-BIL in your portable generator.


  • Does the fuel stabilizer itself go bad, or expire? Ie. If I have a bottle that’s 10 years old, is it still good?


    • Hi, Andrew. STA-BIL Products have a shelf life of 2 years once the bottle has been opened. So we do not recommend to use the 10 year old bottle you currently have. If you have any other questions please contact consumer support at producttechsupport@goldeagle.com


  • I have heard if you use stabil in a vehicle and later move the vehicle the stabil has been compromised and no longer will work.


    • Hi, Brent. No, that is absolutely not true. If you have any other questions please contact consumer support at producttechsupport@goldeagle.com


  • Does Stabil diesel formula winterize #2 diesel?


    • Hi, Ted. Yes, this will keep fuel fresh for storage up to 12 months. If you have any other questions please contact consumer support at producttechsupport@goldeagle.com


  • What happens if an ounce of sta-bil too much is added to a tank of gas?


    • Hi, Tom. Over-dosage is perfectly OK. We just do not recommend to add more than 4 times the recommended amount. If you have any other questions please contact consumer support at producttechsupport@goldeagle.com


  • Can sta bit cause gas to turn green in color ?


    • Hi, Rick. STA-BIL will not turn the fuel a different color. However, you may see a color change in the product itself because of the dye and chemical. That is completely normal and does not change the efficiency of the product. If you have any other questions please contact consumer support at producttechsupport@goldeagle.com


  • Which Sta-Bil product should I use to stabilize 100 gallons of “plus” echanol-containing fuel in by boat fuel tank over the winter? Also, how many ounces of your recommended product should I use? Thank you.


    • Hi, John. We recommend STA-BIL 360 Marine. This can be used in any fuel and will protect against ethanol. Also, this can be used at every fill-up as well for storage and will keep the fuel fresh for up to 12 months. The recommended dosage amount is 1 oz. per 10 gallons. If you have any other questions please contact consumer support at producttechsupport@goldeagle.com


  • I have a classic car. I have been using your storage formula but realized it doesn’t fight against ethanol problems. Does it matter if i use your 360 or marine formulas? Is one better than the other or worse? Do they prevent phase separation? A friend of mine used your product on his motorcycle and said he saw leaks in the fuel connections when he first used it after storage. Any thoughts on it?
    Thank You

    Thank You


    • Hi, William. You can certainly use the STA-BIL 360 Marine or STA-BIL 360 Protection in your classic car. Both of these will provide you protection against ethanol. Also, these can be used at every fill-up and for storage and will keep the fuel fresh for up to 12 months. The difference between these two is that the STA-BIL 360 Marine is a little stronger to prevent condensation in the fuel. Also, STA-BIL will not harm any part of the fuel system, including any sensors, rubber parts and catalytic converters. If you have any other questions please contact consumer support at producttechsupport@goldeagle.com


  • I accidentally added 8 ounces of Sta-Bil storage to 13 gallons of non-ethanol gas in my BMW Z3. Is the extra 3 ounces added going to be an issue. Also, the bottle indicated it treats all ethanol blended fuels. Will it also work with non-ethanol fuels? Thanks in advance!


    • Hello! Over-dosage is safe and will not cause any harm. We just do not recommend to add more than 4 times the recommended amount but in your situation it is OK. Also, yes STA-BIL will work in both ethanol and non-ethanol. If you have any other questions please contact consumer support at producttechsupport@goldeagle.com


  • I have a Yamaha waverunner. I use only ethanol-free gas. Do I need to use Sta-bil for the winter?


    • Hi, Patsy. Yes, you can certainly still use STA-BIL in non-ethanol fuel. This will keep this gas fresh for storage. If you have any other questions please contact consumer support at producttechsupport@goldeagle.com


  • I have a Honda Rebel 250cc air cooled parallel twin MC that runs on 87 octane regular gas. I want to use the correct Sta-Bil product to keep my carb and fuel line clean and to stabilize my fuel during periods of decreased use – NYC winters where the roads are iced over or salted beyond belief. I don’t intend to store the bike for extended periods – it will remain in the driveway awaiting days where we have passable roadways. Can you advise me as to which product I should use? TIA!


    • Hello, to keep the fuel as fresh as possible for at least 12 months and to prevent corrosion and condensations issues, we’d rather recommend STA-BIL 360 Protection. If you have any other questions please contact consumer support at producttechsupport@goldeagle.com