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AMSOIL DOMINATOR® Octane Boost12 oz. Bottle
Product code : AOBBE-EA
AMSOIL DOMINATOR® Octane Boost12 oz. Bottle
Product code : AOBBE-EA
Current price:
$14.39
Retail Price
12 oz. Bottle is temporarily out of stock. Try another available size from the menu above.
Estimated delivery by Sat, Oct 31
to Columbus - 43215.
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Added to Your Shopping Cart
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- Increases octane up to 4 numbers for improved performance
- Maximizes power
- Reduces engine knock
- Improves ignition & responsiveness
- Helps fuel burn more cleanly
- Removes carbon deposits
-
We offer easy returns for customers. If your product is unused and unopened, you may return it within 30 days for a full refund of the purchase price. View full AMSOIL Return Policy.
-
We accept Visa, Mastercard, American Express, Discover and PayPal, and provide secure checkout and encrypted payment processing.
About this item
-
For off-road and racing use only. Increases octane up to four numbers. Helps reduce engine knock for maximum power, responsiveness and performance.
See the product data sheet for full details.
INCREASES OCTANE UP TO 4 NUMBERS
- Significantly increases engine response and power in two- and four-stroke gasoline-fueled engines.
- Just one treatment reduces engine knock, improves ignition and helps fuel burn cleaner.
- Most users find one 12-ounce (354 mL) bottle for 15 gallons (57 litres) of gasoline provides the ideal performance increase.
EXCELLENT LEAD SUBSTITUTE
- Excellent as a lead substitute in collector automobiles, older off-road equipment and pleasure vehicles.
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star rating
I'm sure it's amazingBy FREDERICK, a Verified Buyer from WA on September 17, 2026I have not yet had a chance to try this product yet.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
Detination issue solvedBy LYNDON, a Verified Buyer from New York on August 15, 2026I own a 1979 Harley Davidson super guide 1340cc with a shovel head engine. On acceleration n on hot days the bike would ping extremely load n be sluggish on throttle response. Since I started using amsoil dominator octane booster I no longer have an issue. No more pinging n throttle response is awesome. Thanks for such a great product.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
OctanBy SERGE, a Verified Buyer on August 04, 2026Very effective productBottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
Great octane boosterBy DAVE, a Verified Buyer from Kapuskasing on June 25, 2026At first i was scepticle about the octane rating, bought the product, bought the octane test strips and yes it brings the numbers up 💯 percent!Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
Good stuffBy KEITH, a Verified Buyer on June 18, 2026Great price Quick Delivery and is working great 👍Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
Buy NowBy Pontiac, a Verified Buyer from DC on April 25, 2026I purchased three products from AMSOIL, The Upper Cylinder Lubricant Corrosion Inhibitor, The DOMINATOR® Octane Boost, and The P.i.® Performance Improver Gasoline Additive I added all three to a full tank but, prior to doing this, I had filled the tank with Top Tier Fuel for this test Shortly after I took a ride, at first, I noticed nothing, but the very next day I put twenty miles on her, and that is when I noticed she ran quieter, and that the pick-up was back I highly recommend this product for older vehicles, and I want you to know, that these products are not a gimmick Check it out for yourselfBottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
For Off Road UseBy WOODY, a Verified Buyer from North Carolina on January 17, 2026Using this product sparingly, has increased my power and mileage.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
Feel the powerBy SHAWN, a Verified Buyer on January 10, 2026You can feel the power the vehicle loves itBottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
Major power improvementsBy CHARLES, a Verified Buyer from spruce grove on December 07, 2025Added to my mid grade gas i use at local station, its like running 94 octane fuel at half the price.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
This is a great Octane Boost productBy Moonshine455, a Verified Buyer from VT on September 13, 2025I use this in my Arctic Cat 1100 snowmobile on every tank refull - just an ounce or two and the throttle response difference is noticeable!Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
Data Bulletins-
- Increases octane up to 4 numbers for improved performance
- Maximizes power
- Reduces engine knock
- Improves ignition & responsiveness
- Helps fuel burn more cleanly
- Removes carbon deposits
-
We offer easy returns for customers. If your product is unused and unopened, you may return it within 30 days for a full refund of the purchase price. View full AMSOIL Return Policy.
-
We accept Visa, Mastercard, American Express, Discover and PayPal, and provide secure checkout and encrypted payment processing.
-
For off-road and racing use only. Increases octane up to four numbers. Helps reduce engine knock for maximum power, responsiveness and performance.
See the product data sheet for full details.
INCREASES OCTANE UP TO 4 NUMBERS
- Significantly increases engine response and power in two- and four-stroke gasoline-fueled engines.
- Just one treatment reduces engine knock, improves ignition and helps fuel burn cleaner.
- Most users find one 12-ounce (354 mL) bottle for 15 gallons (57 litres) of gasoline provides the ideal performance increase.
EXCELLENT LEAD SUBSTITUTE
- Excellent as a lead substitute in collector automobiles, older off-road equipment and pleasure vehicles.
-
-
-
star rating
I'm sure it's amazingBy FREDERICK, a Verified Buyer from WA on September 17, 2026I have not yet had a chance to try this product yet.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
Detination issue solvedBy LYNDON, a Verified Buyer from New York on August 15, 2026I own a 1979 Harley Davidson super guide 1340cc with a shovel head engine. On acceleration n on hot days the bike would ping extremely load n be sluggish on throttle response. Since I started using amsoil dominator octane booster I no longer have an issue. No more pinging n throttle response is awesome. Thanks for such a great product.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
OctanBy SERGE, a Verified Buyer on August 04, 2026Very effective productBottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
Great octane boosterBy DAVE, a Verified Buyer from Kapuskasing on June 25, 2026At first i was scepticle about the octane rating, bought the product, bought the octane test strips and yes it brings the numbers up 💯 percent!Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
Good stuffBy KEITH, a Verified Buyer on June 18, 2026Great price Quick Delivery and is working great 👍Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
Buy NowBy Pontiac, a Verified Buyer from DC on April 25, 2026I purchased three products from AMSOIL, The Upper Cylinder Lubricant Corrosion Inhibitor, The DOMINATOR® Octane Boost, and The P.i.® Performance Improver Gasoline Additive I added all three to a full tank but, prior to doing this, I had filled the tank with Top Tier Fuel for this test Shortly after I took a ride, at first, I noticed nothing, but the very next day I put twenty miles on her, and that is when I noticed she ran quieter, and that the pick-up was back I highly recommend this product for older vehicles, and I want you to know, that these products are not a gimmick Check it out for yourselfBottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
For Off Road UseBy WOODY, a Verified Buyer from North Carolina on January 17, 2026Using this product sparingly, has increased my power and mileage.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
Feel the powerBy SHAWN, a Verified Buyer on January 10, 2026You can feel the power the vehicle loves itBottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
Major power improvementsBy CHARLES, a Verified Buyer from spruce grove on December 07, 2025Added to my mid grade gas i use at local station, its like running 94 octane fuel at half the price.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
This is a great Octane Boost productBy Moonshine455, a Verified Buyer from VT on September 13, 2025I use this in my Arctic Cat 1100 snowmobile on every tank refull - just an ounce or two and the throttle response difference is noticeable!Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
