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AMZOIL Dominator Octane Booster

Amsoil Dominator Octane Boost works with even the lowest octane!The one octane boost product that really works!
Dominator Octane Boost product code: AOB

Package sizes include:

12-oz. Bottle
12-oz. Bottles (case of 6)

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.

Performance Features

  • Improves performance
  • Removes carbon deposits
  • Maximizes power
  • Reduces engine knock
  • Improves ignition
  • Improves responsiveness
  • Helps fuel burn cleaner

AMSOIL, the leader in automotive synthetic lubrication, produced the world’s first API-qualified synthetic motor oil in 1972. Trust the extensive experience of AMSOIL, The First in Synthetics®, to do the best job protecting your engine.

What does "octane number" mean 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. "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.

Call 800-579-0580 for wholesale pricing or to order via phone.

Customers LOVE this product - they return because it gives noticeable results when the highest octane is required.


Download this printable PDF - Data Sheet on the Gasoline Octane Booster

Buy AmsoilGasoline Octane Boost Racing In the Online Store Now


Look up your vehicle's filters, capacities, plugs, wires, wipers and Transmission/Drivetrain Fluids.



Also bookmark and read into the PI - Performance Improver Gasoline Additive - Our best selling item other than oil.

Octane Boost Q & A:

In using octane boosters, when the product says it increases the octane, say 4 points, I and many others assumed it means an increase of 87 to 91, as an example. However, in the July 2012 issue of Car Craft, Jeff Smith in his “Ask Anything” column (p.45) says that it would increase octane from 87 to 87.4. My question:

1. Is this generally a true statement? 2. Is this true of competitor’s products? 3. Is this true of AMSOIL Octane Boost?

Thank, Paul Hill

AMSOIL: A complicated, unofficial system used within the industry to evaluate octane increase can greatly confuse this issue, allowing some additive manufactures to artificially strengthen their marketing claims. Generally, increasing octane by one octane unit means increasing it from 87 to 88, while increasing octane by one point means increasing it from 87 to 87.1. AMSOIL Octane Boost performance is measured in units; a four-unit octane increase brings 87 octane fuel to a 91 octane fuel.


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