Maximizes power and improves performance in all two-cycle and four-cycle gasoline engines. Reduces engine knock, improves ignition and engine response, helps fuel burn cleaner and inhibits corrosion. Recommended for off-road and racing use.
Package sizes include:
12-oz. Bottle
AMSOIL DOMINATOR® Octane Boost (AOB) significantly increases engine response and power in all two- and four-cycle gasoline-fueled engines. Just one treatment reduces engine knock, improves ignition and helps fuel burn cleaner. DOMINATOR Octane Boost is the recommended octane boost for all high-performance off-road and racing applications. Most users find one 12-ounce bottle of DOMINATOR Octane Boost for 15 gallons of gasoline provides the ideal performance increase. DOMINATOR Octane Boost is also excellent as a lead substitute at the same treat rates in collector automobiles, older off-road equipment and pleasure vehicles.
• Improves performance
• Maximizes power
• Improves ignition
• Helps fuel burn cleaner
• Removes carbon deposits
• Reduces engine knock
• Improves responsiveness
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. "Knock" is an uncontrolled and explosive ignition of fuel in the combustion chamber. It causes a knocking or pinging sound, robs the engine of power and, left unchecked, causes serious engine damage. Knock may be eliminated with the appropriate octane number.
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).
Click here to view the MSDS Data Sheet for AMSOIL AOB.
Keep out of the reach of children. Don't pollute. Return used oil to collection centers.
Product Name: Dominator Octane Boost (AOB)
Current Rating: 4.81out of 5 stars
Votes & Reviews: 47 vote(s) and 61 user reviews.
Reviewed by Anthony: 
In my truck
Reviewed by George:
I use this product in an engine without hardened valve seats. all upside no downside. easier starts, better acceleration. very happy with this product.
Reviewed by John:
This was my first time trying this octane booster it was just to ensure I was not going to have pre ignition and so far far I have no issues
Reviewed by Robert:
I'm not really sure of the performance increase by use, but I like what I read about what it is supposed to do and I trust Amsoil to deliver.
Reviewed by Steve:
I run this in several high mileage cars. All in great shape.
Reviewed by Robert:
Octane booster works good you can tell the difference
Reviewed by Travis:
Use this in a ATV. Great results!
Reviewed by RYAN:
IN PULLING TRACTORS
Reviewed by Rob:
I use this product always in my snowmobile
Canada
United States
i will buy this again
i use this product in my car 4.7 liter twin turbo and feel the difference. because in Canada we don t like in Europe have 98 octane.