Hammer in Horsepower with Motorcycle Octane Boost

Motorcycle Octane Boost Maximizes Power and Efficiency. 3 Octane Point gain. Try it and you'll be telling your brother!

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V-Twin Motorcycle Octane Boost Gasoline Additive

AMSOIL Motorcycle Octane Boost (MOB) increases octane for maximum power and efficiency. It is designed to improve startup performance and eliminate engine ping or knock for increased power at low-rpm operation. Motorcycle Octane Boost contains detergents that help combustion chambers and fuel-delivery systems maintain cleanliness for optimum performance. At the recommended treat rate, it does not harm catalytic converters or oxygen sensors and is compatible with all other AMSOIL fuel additives.

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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).

Gasoline Motorcycle Octane Boost Product Data Sheet

Download PDFProduct Datasheet

 

Improves Low-rpm Performance

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.

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 knock 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 and can cause catastrophic engine damage. Knock may be eliminated by increasing the fuel’s octane.

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).

MOB

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.

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HEALTH & SAFETY

This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Material Safety Data Sheet (MSDS). 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.

It’s the easiest and the most difficult product to sell!! Yes, people who use this are blown away by how well it works beyond what they expected. Assumed it would simply control the knock or pre-detonation and the bonus was instant low end throttle response and responsive acceleration. It also cleans carbon air cooled V-Twins are known for. But it’s one of the products they come back to our Omaha store just for another bottle with a big smile on their face.
On the other hand, it’s the one add-on product we get the most “not interested” when we suggest it with their motor oil purchase. Boy if only they knew what they were passing up.

 

Motorcycle Octane Boost Customer Feedback!

 

When you need extra power, this is the solution !!!

By  JORGE,  a  Verified Buyer  from  Orlando, FL. U.S.A.  on  March 17, 2025
I tried, and the results were great !!!

NEEDED

By  RODNEY,  a  Verified Buyer  from  Union county Illinois  on  November 14, 2024
When traveling in areas where 93 octane is not available, adding this to your tank gives you confidence and peace of mind you will get quality performance and reliabity out if each tank of gas!

Gas Boost

By  Cuz,  a  Verified Buyer  from  Saluda, South Carolina   on  June 27, 2024
I’ve used this on road trips when a higher octane is not available at some stations. My Indian Appreciates the Boost!

Highly Recommend

By  JOHN,  a  Verified Buyer  from  Arvada, CO  on  June 22, 2024
I use the octane boost in my 2019 HD Roadglide. I upgraded my motor with a stage IV kit & improves the performance exceptionally by using regularly. Also is great for road trips when you fuel multiple times, you never know the quality of premium fuel on the road. My wife has a 2019 Spyder, which we use the octane boost in too.

Pleased

By  RICKY,  a  Verified Buyer  from  Conway, SC  on  January 18, 2024
I use this to help raise the octane level in my bored and stroked H-D. Due to the poor fuel quality at some locations in my state, my bike used to suffer from detonation and at times poor throttle response. Since starting to use this additive, our bike seems to run smoother and stronger. I do recommend it.

Perfect for the BIG cycles…

By  RICK,  a  Verified Buyer  from  Raleigh, NC area  on  December 19, 2023
I ride an Indian Pursuit motorcycle. Anyone owning an Indian can tell you that the engine rattles and pings awful without the highest octane available. Many other motorcycles need this as well. This does the trick!