AMSOIL’s Motorcycle Octane Boost Enhances Power and Performance

Save more by buying by the case. Try one and you’ll be hooked. A real power enhancer.

Stops Pre-detonation or Pre-Ignition while enhancing the overall ride

Increases octane for power and efficiency. It is designed to improve startup performance and eliminate engine pre-ignition or ping and knock for increased power at low-rpm operation. Contains detergents that help combustion chambers and fuel delivery systems maintain cleanliness for optimum performance. The side effect per our customer feedback is substantial. Please read the reviews at the bottom of this page!!!

Amazing the power in such a small bottle.

Motorcycle Gasoline octane boostIt’s one of the products they come back to our Omaha store just for another bottle with a big smile on their face.
But before using you want to have the cleanest intake system so run a bottle of Quickshot to remove all the carbon and improve valve performance.

Buy & Check PriceAnd Container Size

Maximizes Power & Performance

When treated at 1.3 oz. per gallon of fuel, Motorcycle Octane Boost increases the octane of gasoline up to three numbers. Increased octane improves power and can eliminate performance-robbing and potentially damaging engine knock or ping (see below).

Improves Low-rpm Performance 

Some say it takes off like a different bike.

Engine knock is especially noticeable in some motorcycles during idle or low-rpm operation and high-temperature driving. Most modern bikes are equipped with sophisticated knock-detection systems that can alter spark timing and the air-to-fuel mixture until knock ceases. Although these systems protect the engine from damage, they can also cause reduced horsepower and poor low-rpm operability. AMSOIL Motorcycle Octane Boost helps reduce the need for knock-detection systems to compensate, ensuring maximum low-rpm power and performance in modern bikes.

Octane Boost Data Sheet

Download PDFProduct Datasheet

Cleans Harmful Deposits

Because Motorcycle Octane Boost contains active detergents, it can help maintain efficiency. For clean up, however, AMSOIL recommends treating gasoline with AMSOIL Quickshot®, which contains a greater concentration of cleaning agents.

What is engine knock and why does it matter?

The tendency of a hydrocarbon fuel, such as gasoline, to knock is measured by its octane number. Lower numbers denote a greater knock tendency; higher numbers denote greater pre-ignition control. Engine knock is a reference to the sound made from an uncontrolled and early ignition of fuel in the combustion chamber. It causes a knocking or pinging sound, robs the engine of power eventually causing costly engine damage. Knock may be eliminated by increasing the fuel’s octane.

Octane Boost numbers

What is Research Octane Number?

Research Octane Number (RON), Motor Octane Number (MON) and Anti-Knock Index (AKI) are the three most common octane ratings. AKI, the rating with which most North American motorists are familiar, is typically displayed on gas pumps as the average of the fuel’s RON and MON [(R+M)/2]. RON, however, is the most common industry rating. Therefore, AMSOIL uses the RON rating when conducting performance tests and product validation. Gasoline’s RON generally is a few numbers higher than the AKI posted on the gas pump (e.g. 87 octane fuel, or regular pump gas, has a RON of about 91-92).

When marketing their products, some additive manufacturers have adopted a points system where 10 points equals one octane number. A claim that an additive increases octane 30 points translates into an increase of three octane numbers. This approach is often used only to artificially strengthen marketing claims and is not endorsed by AMSOIL.

Treat Rate

One 4-oz. bottle of AMSOIL Motorcycle Octane Boost treats four to six gallons of gasoline. Slight overtreatment causes no issues,

APPLICATIONS
Motorcycle Octane Boost is primarily recommended for use in four-stroke air- or liquid-cooled motorcycles manufactured by Harley-Davidson®, Yamaha®, Honda®, Ducati®, BMW®, Triumph® and all other four-stroke motorcycles. It may be used in off-road applications, including ATVs, UTVs and snowmobiles, as an alternative to AMSOIL DOMINATOR® Octane Boost. Note: Clean spills immediately using a clean towel. If left standing, Motorcycle Octane Boost can stain painted or metal surfaces. If cleaned immediately, there is no need for concern.

HEALTH & SAFETY
This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Safety Data Sheet (SDS). USA and Canada (M)SDS are available upon request at 715-392-7101 or on the AMSOIL Website. Keep Out of Reach of Children. Don’t pollute.

Here’s a V-Twin forum where the motorcycle octane boost product is discussed. 

Stop by the Omaha store at 4211 S. 84th St. Omaha, NE 68127. Just across from the QT fuel station at 84th & G.
Call 402-933-3902

Customer Reviews on Motorcycle Octane Boost

 

Best Octane Booster
By  DENNIS,  a  Verified Buyer  from  Alabama   on  May 05, 2025
Whenever you’re ordering oil for next oil change, give this little guy a try. Good combo to boost 87 ethanol free to 91, instead of mixing gas levels to achieve perfect octane
very good octane booster
By  JEFF,  a  Verified Buyer  from  the great PNW  on  April 17, 2025
Used this in a bike that had sat for years. Drained the tank the best I could, added fresh gas and the Octane boost, bike runs great and has great power
MC Octane Boost
By  JOSEPH,  a  Verified Buyer  from  Florida  on  April 12, 2025
Incredible product that helps with the engine knocking in my HD 114 M8 motor. I use it at every other fill up. Amsoil quality for sure.
2014 Street Glide Special

By  ROB,  a  Verified Buyer  on  May 13, 2024

I run this in my first tank of fuel after the winter storage each year and it runs like it has fresh gas in it from the pump after sitting all winter no hesitation or sputter any more