104+® Octane Boost

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Boosts Power
Get Better Gas Mileage
Cleans Fuel Injectors
Reduces Knocks, Pings & Hesitation
Safe for Catalytic Converters & Oxygen Sensors
Treats up to 18 gallons
Size: 16 oz. bottle

More Information
FAQs
Reviews
Questions

When you have a performance car, you expect it to perform… RIGHT? Well if it is top tier, shifter grabbing, tire smoking fun you are looking for you are in the right place.

104+ Octane Boost is proven to boost octane, clean injectors, and put a grin on your face from ear to ear.

What is worse than taking a car out for a spin with your friends and the car starts pinging and knocking? Now you look like a fool and your friends are going to think you’re cheap because you didn’t shell out a few extra bucks for some 104+ Octane Boost.

Usage Directions:

104+ experts recommend adding the entire bottle of 104+ Octane Boost, then filling your gas tank. This one bottle treats up to 18 gallons of gas. It is safe to use in all gasoline blends including ethanol.

For California Residents:

WARNING: Cancer and Reproductive Harm
For more information go to www.P65Warnings.ca.gov

FAQs

Both the 104+® Octane Boost and 104+® MAXIMUM Octane Boost products contain 5 unique ingredients that in addition to boosting octane, also clean and lubricate both the Complete Fuel System and the Complete Combustion System, which helps improve horsepower, acceleration, and increase your vehicle’s gas mileage. 104+® MAXIMUM Octane Boost contains DOUBLE the Octane Boost of the Regular Formula, maximizing performance. No other Octane Boost gives you more!.

These formulas are not registered with the EPA for on-road use, so we are required to label both the 104+® Octane Boost and 104+® MAXIMUM Octane Boost products for “Off Road Use Only”. However, both 104+® brand products are safe to use in ALL vehicles, and will not harm catalytic converters or oxygen sensors.

104+® brand products are safe to use in every tankful, for optimal performance, or whenever engine performance feels sluggish.

No, we recommend that you follow the fuel grade suggestion in your vehicle’s owner’s manual.

104® Octane Boost is an additive that not only boost octane, reducing knocks, pinging and hesitation, but also cleans the entire fuel system. By adding 104+® Octane Boost regularly, you will increase engine performance and gas mileage.

104+® Octane Boost does not have an expiration date. However, be sure to check for contamination (sediment, flakes, etc.) prior to using it.

104+® Octane Boost can be found in major automotive retailers. To find a place near you, please see the “Where to buy” section of our website.

Reviews

104+® Octane Boost is rated 4.3 out of 5 by 53.

Rated 5 out of 5 by Fernie from Excellent product. I added 104 octane boost to my 2004 Polaris 700 and it runs way better. The main plus was starting .... It used to be horrible cold blooded and had to ckoke it till warm. Now very little choke and pops rite off even in brutal winter weather. Totally impressed with 104 octane boost. Won't be without it ever again.

Date published: 2023-05-14

Rated 5 out of 5 by The Jbo from The Best!!! 104+ octane boost is the only fuel treatment i use. It works so well. The unique formulation is extremely effective. The number of Proprietary ingredients gives me great confidence in its ability to do what it's says on the bottle. It has a great price as well. The mpg on my Oldsmobile Cutlass increased by 4% after 1 use. Thank you for making the BEST Fuel additives in the nation!

Date published: 2019-03-18

Rated 5 out of 5 by Moose from Skeptical before use I didn't think this gas additive would make a difference with my 20 year old mower or my weed eater grass trimmer. This spring, I mixed up a batch to use with my lawn equipment and WOW- it really made a performance difference. Both engines started with the first pull. The engines idle smoother and have better throttle responses.

Date published: 2018-04-07

Rated 5 out of 5 by AAKJR from Good fuel additive I have a 1969 Camaro with a relatively higher compression ratio engine that I like to use this in. I don't have any detonation so I'd say it's helped the fuel.

Date published: 2016-08-19

Rated 2 out of 5 by Jeff D from Unsure of its purpose Octane 104 is to boost the octane level of gasoline. So I did an experiment by using this product in my 2005 BMW which requires 91 octane fuel. I added 104 before I filled up the tank with 87 octane gasoline. I assumed that this product would increase the octane level to 91. I checked my fuel economy after I burned through the tank and found that my MPG was less than comparing it to using 91 octane fuel. I concluded that this does not give enough of an octane boost to replace the use of 91 octane fuel.

Date published: 2016-08-17

Rated 4 out of 5 by GiGi from Worked Great for Me I received this product at no charge in return for an honest review. I used the product in a tank of gas in my truck just prior to towing a 12 foot trailer full of furniture. I use 87 octane unleaded in my high mileage truck and typically get some knocking during acceleration, particularly when towing. I towed the full trailer about 200 miles and never experienced any knocking. In fact, the truck seemed to accelerate stronger and more smoothly with the 104+ Octane Boost added to the tank of gas. Not sure I would use daily, but for towing and other harder driving it makes a difference in performance and even gas mileage.

Date published: 2016-08-09

Rated 4 out of 5 by Freddie from It works I like to experiment, so I put 2oz. of the 104 Octane in my lawn tractor 1 gallon tank. It ran better than it has in years - (15 yr old).

Date published: 2016-08-03

Rated 4 out of 5 by Dick from Octane Boost works! Wow! My ZZ4 (355HP 350 SB) would ping even on 93 octane gas. There's no ping after adding Octane Boost. I would like to see a better dispensing method as my tank fill location is in the bed of a (street rod) pickup and it was difficult NOT to spill when adding it to the tank (maybe a flip-top squeeze cap like syrup bottles).

Date published: 2016-07-19

104+® Octane Boost Reviews - page 2

Questions & Answers

Can I use 104+ octane booster in a 2-cycle mix with Amsoil Sabre at 72:1?

Asked by: JimL

Hi. Yes, you can treat a 72:1 2-cycle mix with 104+ Octane Boost. We recommend following the product's treatment and dosage instructions. Hope this helped!

Answered by: Conrad

Date published: 2020-09-07

Does Octane 104 contain any Ethanol in the formula?

Asked by: Dave347

No. This product does not contain ethanol. Thanks for the question.

Answered by: Conrad

Date published: 2022-07-01

is it ok to use octane boost and fuel injector pro at the same time?

Asked by: dave2609

Hi. Yes. They are compatible with each other. Hope that helps!

Answered by: Conrad

Date published: 2020-09-07

How much does 104+ increase octane level?

Asked by: donkey

Hello, Depending on what level of octane you start with and the strength of 104+® Brand product being used, the results vary. Typically 104+® Octane Boost (red bottle) will raise octane by 1-2 points, while Ultra (black bottle) will raise it by 3-5.

Answered by: Conrad

Date published: 2021-11-09

Does this product contain methylcyclopentadienyl manganese tricarbonyl (MMT)?

Asked by: Jeff DX9

No. This product does not contain MMT's.

Answered by: Conrad

Date published: 2020-09-22

Does 104 OB Concntrate lubricate at all? amd is it just a FI Cleaner? thank you!!!!

Asked by: jbow

Hello, 104 +® Octane Boost does not have a lubricant. It is both a cleaner and octane booster. Please contact us at marketing@goldeagle.com if you have any questions about this. Thank you.

Answered by: Melissa Taylor

Date published: 2020-09-07

Is this safe for any type of car or is it specifically for racing engines?

Asked by: Rene100

Hi Rene, All 104+® Octane Boost formulas are safe for all automotive engines, including ATV’s, motorcycles, racing vehicles, and antiques.

Answered by: Melissa Taylor

Date published: 2020-09-07

104+® Octane Boost

STA-BIL® Starting Fluid

104+® Max Octane Boost and Lead Substitute

STA-BIL 360°® Protection™

Usage Directions:

Can I use 104+ octane booster in a 2-cycle mix with Amsoil Sabre at 72:1?

Does Octane 104 contain any Ethanol in the formula?

is it ok to use octane boost and fuel injector pro at the same time?

How much does 104+ increase octane level?

Does this product contain methylcyclopentadienyl manganese tricarbonyl (MMT)?

Does 104 OB Concntrate lubricate at all? amd is it just a FI Cleaner? thank you!!!!

Is this safe for any type of car or is it specifically for racing engines?

104+® Octane Boost

Related Products

STA-BIL® Starting Fluid

104+® Max Octane Boost and Lead Substitute

STA-BIL 360°® Protection™

Usage Directions:

What’s the difference between the 104+® Octane Boost and the 104+® MAXIMUM Octane Boost?

Why do the 104+® Octane Boost products say “For Off Road Use Only” on the label?

How often should I use 104+® Octane Boost Products?

Can I use a lower grade of fuel than is recommended by the manufacturer and add 104+® Octane Boost products to make it a higher grade?

What Is 104+® Octane Boost? How Does It Work To Increase Gas Mileage?

Do 104+® Octane Boost Products Expire?

Where Can I Buy 104+® Octane Boost Products

Can I use 104+ octane booster in a 2-cycle mix with Amsoil Sabre at 72:1?

Does Octane 104 contain any Ethanol in the formula?

is it ok to use octane boost and fuel injector pro at the same time?

How much does 104+ increase octane level?

Does this product contain methylcyclopentadienyl manganese tricarbonyl (MMT)?

Does 104 OB Concntrate lubricate at all? amd is it just a FI Cleaner? thank you!!!!

Is this safe for any type of car or is it specifically for racing engines?