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AMSOIL Formula 4-Stroke® Powersports 0W-40 Synthetic Motor Oil

Product code : AFFQT-EA

4.9 star rating
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AMSOIL Formula 4-Stroke® Powersports 0W-40 Synthetic Motor Oil

Product code : AFFQT-EA

4.9 star rating
Current price:

$18.49

Retail Price
Estimated delivery by Mon, Jun 8 to Columbus - 43215.
    • Specially formulated for four-stroke powersports engines
    • Delivers quick startup protection
    • Helps prevent carbon/varnish formation
    • Easy cold-weather starts
    • Wet-clutch compatible
    • Anti-rust fortified for superior rust protection
  • 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

  • Designed for top engine and transmission performance and ideal for equipment pushed hard on the trail or on the job. Anti-wear fortified and wet-clutch compatible. All-climate/all-season formula for excellent performance in both cold and hot temperature extremes. Use in ATVs, snowmobiles and other powersports applications that require 0W-30, 0W-40, 5W-30, 5W-40, 10W-30 or 10W-40 oil, including those made by Polaris,* Honda,* Yamaha,* BRP,* Can-Am,* Suzuki,* Kawasaki* and Arctic Cat.*

    See the Product Data Bulletin for full details.

    PROTECTS IN TEMPERATURE EXTREMES

    • Delivered exceptional protection against wear and deposits after 100 hours (3,421 miles [5,028 km]) of extreme dyno testing (see video).
    • Broad viscosity range and wax-free formulation make it excellent in both hot and cold temperature extremes.
    • Resists oxidation and oil vaporization to help prevent carbon/varnish formation, control oil consumption and minimize exhaust emissions.
    • 0W rating and -58°F (-50°C) pour point ensure easy cranking, excellent cold-weather starting and quick post-startup protection.

    Download Transcript >


    FIGHTS ENGINE & TRANSMISSION WEAR

    • Formulated with high levels of anti-wear additives that provide excellent protection for pistons, bearings and gears in transmission-containing units.
    • Shear-stable, SAE 40 viscosity delivers a thick lubricating film for an extra margin of protection in hard-working engines.
    • Premium synthetic base oils and additives resist chemical breakdown for long-lasting protection.

    SPECIALIZED FOR POWERSPORTS

    • Contains robust dispersant/detergent additives that effectively neutralize acids and combustion byproducts prone to powersports engines.
    • Anti-rust fortified to protect components from rust during storage.
    • Controls foam common to high-rpm engines, promoting cooler engine operation and reduced wear.
    • Wet-clutch-compatible formulation helps prevent clutch slippage, helping deliver maximum torque and power to the wheels.

    See the Product Data Bulletin for full details.

    *All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use.

  • Data Bulletin

    Warranty

    SDS



  • 4.9 star rating
    • 5 star rating
      0W-40
      By  NEAL,  a  Verified Buyer  from  Ohio  on  March 03, 2026
      Great product
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Switch to Amsoil
      By  BOB,  a  Verified Buyer  from  Vancouver B.C.  on  December 23, 2025
      I have recently switched all my vehicles and ATV’s to Amsoil. From everything I have read and heard from auto mechanics and part store Instagram posts, this is the best oil for my vehicles. I change my oil and filter in half the recommended OEM times. I have just switched all my vehicles to Amsoil so I have not seen the benefit’s yet however, from my research online, I believe I have the best for my vehicles
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Sled oil
      By  DALE,  a  Verified Buyer  from  Picton, Ontario   on  May 09, 2025
      I’ve been using this synthetic oil for years in my ski doo 4-stroke engines. Great performance, as I put high mileage on my sled each season (5000-6000). Less expensive than BRP oils!
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      UTV Oil
      By  PAUL,  a  Verified Buyer  on  May 04, 2025
      UTV oil performed as expected. Three days of hard high performance driving with zero issue
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Excellent produit et tres bon service
      By  DAVE,  a  Verified Buyer  from  Québec  on  April 30, 2025
      Excellent produits et livraison très rapide. Gamme de produit très large avec beaucoup d'information supplémentaire sur les produits et application. Promotions d'achats régulièrement.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Honda Rancher
      By  JAMES,  a  Verified Buyer  from  Sikeston missouri   on  April 05, 2025
      2012 honda rancher had very sticky shifting. Had changed oil and adjusted clutch, but nothing helped. Someone on YouTube suggested Amsoil for a fix.. simply changed oil and filter to Amsoil 4-stroke 0w-40. Instantly started to shift smoothly and has continued to improve . Problem solved.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Excellent for my generator
      By  TREVOR,  a  Verified Buyer  from  Edmonton   on  March 27, 2025
      I use it in my generator and snowblower
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Best 0w40 oil on the market
      By  ALEX,  a  Verified Buyer  on  February 07, 2025
      Great company , very impressed with the oil quality and the performance it gives , definitely recommend to anyone looking for better oil .
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 4 star rating
      Fair Review
      By  Tonija,  a  Verified Buyer  from  Warren, Pa  on  December 28, 2024
      Fast shipping, abet pricey but worth the investment.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Long engine life
      By  DALE,  a  Verified Buyer  from  Picton, Ontario   on  November 29, 2024
      I’ve used this oil in my 1200 rotax engines giving me great performance and reliability! Over 25,000km and still run excellent! Now using in my 900 Turbo
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • Specially formulated for four-stroke powersports engines
    • Delivers quick startup protection
    • Helps prevent carbon/varnish formation
    • Easy cold-weather starts
    • Wet-clutch compatible
    • Anti-rust fortified for superior rust protection
  • 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.

  • Designed for top engine and transmission performance and ideal for equipment pushed hard on the trail or on the job. Anti-wear fortified and wet-clutch compatible. All-climate/all-season formula for excellent performance in both cold and hot temperature extremes. Use in ATVs, snowmobiles and other powersports applications that require 0W-30, 0W-40, 5W-30, 5W-40, 10W-30 or 10W-40 oil, including those made by Polaris,* Honda,* Yamaha,* BRP,* Can-Am,* Suzuki,* Kawasaki* and Arctic Cat.*

    See the Product Data Bulletin for full details.

    PROTECTS IN TEMPERATURE EXTREMES

    • Delivered exceptional protection against wear and deposits after 100 hours (3,421 miles [5,028 km]) of extreme dyno testing (see video).
    • Broad viscosity range and wax-free formulation make it excellent in both hot and cold temperature extremes.
    • Resists oxidation and oil vaporization to help prevent carbon/varnish formation, control oil consumption and minimize exhaust emissions.
    • 0W rating and -58°F (-50°C) pour point ensure easy cranking, excellent cold-weather starting and quick post-startup protection.

    Download Transcript >


    FIGHTS ENGINE & TRANSMISSION WEAR

    • Formulated with high levels of anti-wear additives that provide excellent protection for pistons, bearings and gears in transmission-containing units.
    • Shear-stable, SAE 40 viscosity delivers a thick lubricating film for an extra margin of protection in hard-working engines.
    • Premium synthetic base oils and additives resist chemical breakdown for long-lasting protection.

    SPECIALIZED FOR POWERSPORTS

    • Contains robust dispersant/detergent additives that effectively neutralize acids and combustion byproducts prone to powersports engines.
    • Anti-rust fortified to protect components from rust during storage.
    • Controls foam common to high-rpm engines, promoting cooler engine operation and reduced wear.
    • Wet-clutch-compatible formulation helps prevent clutch slippage, helping deliver maximum torque and power to the wheels.

    See the Product Data Bulletin for full details.

    *All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use.

  • Data Bulletin

    Warranty

    SDS



  • 4.9 star rating
    • 5 star rating
      0W-40
      By  NEAL,  a  Verified Buyer  from  Ohio  on  March 03, 2026
      Great product
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Switch to Amsoil
      By  BOB,  a  Verified Buyer  from  Vancouver B.C.  on  December 23, 2025
      I have recently switched all my vehicles and ATV’s to Amsoil. From everything I have read and heard from auto mechanics and part store Instagram posts, this is the best oil for my vehicles. I change my oil and filter in half the recommended OEM times. I have just switched all my vehicles to Amsoil so I have not seen the benefit’s yet however, from my research online, I believe I have the best for my vehicles
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Sled oil
      By  DALE,  a  Verified Buyer  from  Picton, Ontario   on  May 09, 2025
      I’ve been using this synthetic oil for years in my ski doo 4-stroke engines. Great performance, as I put high mileage on my sled each season (5000-6000). Less expensive than BRP oils!
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      UTV Oil
      By  PAUL,  a  Verified Buyer  on  May 04, 2025
      UTV oil performed as expected. Three days of hard high performance driving with zero issue
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Excellent produit et tres bon service
      By  DAVE,  a  Verified Buyer  from  Québec  on  April 30, 2025
      Excellent produits et livraison très rapide. Gamme de produit très large avec beaucoup d'information supplémentaire sur les produits et application. Promotions d'achats régulièrement.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Honda Rancher
      By  JAMES,  a  Verified Buyer  from  Sikeston missouri   on  April 05, 2025
      2012 honda rancher had very sticky shifting. Had changed oil and adjusted clutch, but nothing helped. Someone on YouTube suggested Amsoil for a fix.. simply changed oil and filter to Amsoil 4-stroke 0w-40. Instantly started to shift smoothly and has continued to improve . Problem solved.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Excellent for my generator
      By  TREVOR,  a  Verified Buyer  from  Edmonton   on  March 27, 2025
      I use it in my generator and snowblower
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Best 0w40 oil on the market
      By  ALEX,  a  Verified Buyer  on  February 07, 2025
      Great company , very impressed with the oil quality and the performance it gives , definitely recommend to anyone looking for better oil .
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 4 star rating
      Fair Review
      By  Tonija,  a  Verified Buyer  from  Warren, Pa  on  December 28, 2024
      Fast shipping, abet pricey but worth the investment.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Long engine life
      By  DALE,  a  Verified Buyer  from  Picton, Ontario   on  November 29, 2024
      I’ve used this oil in my 1200 rotax engines giving me great performance and reliability! Over 25,000km and still run excellent! Now using in my 900 Turbo
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?