Increases octane up to three numbers for maximum power and efficiency. Designed to improve startup performance and eliminate engine ping or knock for increased power during low-rpm operation. Contains detergents that help combustion chambers and fuel-delivery systems maintain cleanliness for optimum performance. At recommended treat rate, does not harm catalytic converters or oxygen sensors.
By 
BootCampBob, 
a 
Verified Buyer 
from 
Upstate New York 
on 
June 10, 2025
My bike requires high-octane fuel, which I can't always find in rural areas, so I grabbed a bottle of this for those times I can't get what the bike needs. Haven't used it yet, but it's good to know I have it when the only thing I can find is 87 or 89 octane.
I haven't gone wrong with any other AMSOIL product, so I'm counting on this in a pinch.
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
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
The Motorcycle Octane Boost works great in itself. The problem lies with the adhesive used on the seal of the bottles. It doesn’t do a good job of keeping the fluid in the bottles. The ones I’ve ordered always have had a few that have leaked.
AMSOIL as a company is great and they stand behind their products. When I brought the above issue to their attention, they more than made up for it. I was not expecting that. Above and beyond customer service!
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Every tank is worth the best !
By 
ARTURO, 
a 
Verified Buyer 
from 
Las Vegas  
on 
January 19, 2025
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