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AMSOIL DOMINATOR® Octane Boost

Product code : AOBBE-EA

4.9 star rating
Read 94 reviews
Read 94 reviews

  • 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

Warning - Click here for Proposition 65 information for this product
Product Overview

AMSOIL DOMINATOR® Octane Boost



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.

See the product data sheet for full details.

Technical Specification

AMSOIL DOMINATOR® Octane Boost

Data Bulletin

Warranty

SDS



Product Reviews

AMSOIL DOMINATOR® Octane Boost

4.9 star rating
Based on 94 reviews
Based on 94 reviews
See all customer reviews
  • 5 star rating
    OOMF
    By  STAN,  a  Verified Buyer  from  Florida  on  July 02, 2024
    As always, this tuff really works, and I keep several bottles in the vehicle in case I am forced to use a lower octane fuel.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    I’ll try it after new engine is broke in!
    By  DONALD R.,  a  Verified Buyer  from  Oklahoma   on  June 19, 2024
    I’ll try it after new engine is broke in when I could get a little more use with it.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Pep
    By  NEAL,  a  Verified Buyer  from  Saskatoon sk  on  June 10, 2024
    My old dodge with a tired old 318 is spinning wheels and pering like a kitten
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Amsiol is #1 for me
    By  MARTIN,  a  Verified Buyer  on  June 01, 2024
    Amsoil fan
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Dieseling
    By  RICHARD,  a  Verified Buyer  from  Va  on  May 01, 2024
    I have a motor with 10:1 compression with a total advance of 35 degrees at 3000 rpm’s . The only problem I had was when I shut motor down it would diesel or run on with the first bottle of AMSOIL octane booster it has stopped Good stuff
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 4 star rating
    octane boost
    By  big hemi 448,  a  Verified Buyer  from  Port St Lucie Fl  on  April 29, 2024
    I run 12.5 compression on a 448 cu NA hemi and 93 pump gas when I know there will be some real hard pulls I always add one bottle of octane boost to 10 gallons so far no knock no hemi tick no timing retard OBTW I also run Amsoil 60 weight !!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great for our old cars
    By  RONALD,  a  Verified Buyer  from  AIKEN SC  on  March 09, 2024
    Our 1959 and 1964 Cadillac Fleetwoods need a little boost from 89 octane non-ethanol gas from Circle K. This gives the octane boost our cars were used to when they were built.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Does the job
    By  JCharles,  a  Verified Buyer  from  Alaska  on  February 28, 2024
    I own the last generation Audi V8 Biturbo engine. I don't trust octane ratings at the pump and use this product as protection.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Worth it
    By  RANDY,  a  Verified Buyer  from  North Carolina  on  January 06, 2024
    2020 WRX stage 2 93 tune. Started adding a bottle of this to my tank at my tuners request (he runs it in his personal 2019 WRX) and it really made a noticeable difference in everyday driving. Engine is running smoother now, idle through whole rpm range, not getting any mis or really “hesitation” that it had been getting off straight 93 pump gas. AF learn was out of spec: +/- 18-20%: in half a tank running this product those numbers have dialed in and are staying under +/- 8% where they should. Highly recommend this product if you’re running a similar set up! I have noticed throttle response is more accurate, it feels like the car is running at its best, and the car just feels “happier,” I guess would be the best way to explain it.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 3 star rating
    Additives
    By  Tracy,  a  Verified Buyer  from  Wyoming  on  November 25, 2023
    I got the octane boost to give it a little bit more horsepower but I don't put that much into it. Cause I think it's just for racing so use it your own description
    Bottom Line
    No, I would not recommend this to a friend.
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