About this item

• Product Overview

  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.

  See the product data sheet for full details.

  MAXIMIZES POWER & PERFORMANCE

  • When added to 4-6 gallons of fuel, increases the octane of gasoline up to three numbers.
  • Helps improve power and eliminate performance-robbing and potentially damaging engine knock or ping.
  • Reduces the need for knock-detection systems to compensate for engine knock, ensuring maximum low-rpm power and performance.

  ---

  MAINTAINS CLEANLINESS

  • Contains detergents that help maintain combustion-chamber and fuel-delivery-system cleanliness for improved efficiency.

   

  See the product data sheet for full details.

• Technical Specifications
  Data Bulletin

  Data Bulletins

  Warranty

  WARRANTY

  SDS

  SDS

  
  
  
• Product Reviews
  4.8 star rating

  Based on 156 reviews

  Based on 156 reviews

  See all customer reviews

  Sort by

  Most Recent Most Helpful Highest Rating Lowest Rating Oldest

  • 5 star rating
    XR200
    By  MILAM,  a  Verified Buyer  from  Houston  on  May 26, 2026

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    First time to use it and I noticed an immediate difference in the horsepower on my XR200. I poured half the bottle directly into my fuel tank. No engine pings or knocks. The bike bike actually ran cooler!
    Bottom Line

    Yes, I would recommend this to a friend.
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    YES (0) NO (0)
  • 5 star rating
    Two Thumbs Up
    By  C. R.,  a  Verified Buyer  from  U.S.A.  on  May 18, 2026

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    Really helps when you're surrounded by Low Quality Gas Station's.
    Bottom Line

    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great product
    By  TERRY,  a  Verified Buyer  from  Central Texas  on  May 05, 2026

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    2017 street glide 91 octane and one bottle this bike comes to life
    Bottom Line

    Yes, I would recommend this to a friend.
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    YES (0) NO (0)
  • 5 star rating
    Just a little better
    By  JOHN,  a  Verified Buyer  from  SoCal  on  May 02, 2026

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    I've been riding high end BMW and KTM motorcycles for over 20 years. They require good fuel and that's hard to get in California. I keep these one shot bottles with me when riding, that way wherever I'm at I just add this to the fill-up. Amsoil makes the best products
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (1)
  • 5 star rating
    Motorcycle
    By  MARK,  a  Verified Buyer  on  May 01, 2026

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    Good
    Bottom Line

    Yes, I would recommend this to a friend.
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  • 5 star rating
    Awesome product
    By  DUANE,  a  Verified Buyer  from  California   on  April 28, 2026

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    Awesome Octane booster
    Bottom Line

    Yes, I would recommend this to a friend.
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    YES (0) NO (0)
  • 4 star rating
    Not bad
    By  HERBERT,  a  Verified Buyer  on  April 18, 2026

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    Could tell a difference run great
    Bottom Line

    Yes, I would recommend this to a friend.
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  • 5 star rating
    My Harley loves it
    By  KELLY,  a  Verified Buyer  from  Missouri   on  March 20, 2026

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    Use it regularly in the bike Wow what a difference No comparison to premium fuel
    Bottom Line

    Yes, I would recommend this to a friend.
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    YES (0) NO (0)
  • 5 star rating
    The BEST for High Output Motors!
    By  C. RAY,  a  Verified Buyer  from  Los Angeles, CA  on  December 03, 2025

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    No pings and nothing but smooth running V-Twin engines with this stuff! Highly recommend.
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)
  • 5 star rating
    Rural Alaska Engine Saver
    By  JEFF,  a  Verified Buyer  from  Kenai, AK  on  November 20, 2025

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    I spend summers roaming rural Alaska on my BMW GS. There's no such thing as premium fuel in the remote ares. I always carry Amsoil octane boost.
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)

• Highlights

  • Increases octane up to three numbers
  • Maximizes power & performance
  • Helps eliminate engine knock & ping
  • Cleans harmful deposits
• Returns

  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.

• Payments

  We accept Visa, Mastercard, American Express, Discover and PayPal, and provide secure checkout and encrypted payment processing.

• Product Overview

  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.

  See the product data sheet for full details.

  MAXIMIZES POWER & PERFORMANCE

  • When added to 4-6 gallons of fuel, increases the octane of gasoline up to three numbers.
  • Helps improve power and eliminate performance-robbing and potentially damaging engine knock or ping.
  • Reduces the need for knock-detection systems to compensate for engine knock, ensuring maximum low-rpm power and performance.

  ---

  MAINTAINS CLEANLINESS

  • Contains detergents that help maintain combustion-chamber and fuel-delivery-system cleanliness for improved efficiency.

   

  See the product data sheet for full details.

• Technical Specifications
  Data Bulletin

  Data Bulletins

  Warranty

  WARRANTY

  SDS

  SDS

  
  
  
• Product Reviews
  4.8 star rating

  Based on 156 reviews

  Based on 156 reviews

  See all customer reviews

  Sort by

  Most Recent Most Helpful Highest Rating Lowest Rating Oldest

  • 5 star rating
    XR200
    By  MILAM,  a  Verified Buyer  from  Houston  on  May 26, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    First time to use it and I noticed an immediate difference in the horsepower on my XR200. I poured half the bottle directly into my fuel tank. No engine pings or knocks. The bike bike actually ran cooler!
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)
  • 5 star rating
    Two Thumbs Up
    By  C. R.,  a  Verified Buyer  from  U.S.A.  on  May 18, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Really helps when you're surrounded by Low Quality Gas Station's.
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)
  • 5 star rating
    Great product
    By  TERRY,  a  Verified Buyer  from  Central Texas  on  May 05, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    2017 street glide 91 octane and one bottle this bike comes to life
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)
  • 5 star rating
    Just a little better
    By  JOHN,  a  Verified Buyer  from  SoCal  on  May 02, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    I've been riding high end BMW and KTM motorcycles for over 20 years. They require good fuel and that's hard to get in California. I keep these one shot bottles with me when riding, that way wherever I'm at I just add this to the fill-up. Amsoil makes the best products
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (1)
  • 5 star rating
    Motorcycle
    By  MARK,  a  Verified Buyer  on  May 01, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Good
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)
  • 5 star rating
    Awesome product
    By  DUANE,  a  Verified Buyer  from  California   on  April 28, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Awesome Octane booster
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)
  • 4 star rating
    Not bad
    By  HERBERT,  a  Verified Buyer  on  April 18, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Could tell a difference run great
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)
  • 5 star rating
    My Harley loves it
    By  KELLY,  a  Verified Buyer  from  Missouri   on  March 20, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Use it regularly in the bike Wow what a difference No comparison to premium fuel
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)
  • 5 star rating
    The BEST for High Output Motors!
    By  C. RAY,  a  Verified Buyer  from  Los Angeles, CA  on  December 03, 2025

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    No pings and nothing but smooth running V-Twin engines with this stuff! Highly recommend.
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)
  • 5 star rating
    Rural Alaska Engine Saver
    By  JEFF,  a  Verified Buyer  from  Kenai, AK  on  November 20, 2025

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    I spend summers roaming rural Alaska on my BMW GS. There's no such thing as premium fuel in the remote ares. I always carry Amsoil octane boost.
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)