☰
Shop by Vehicle
Find AMSOIL Near You

AMSOIL DOMINATOR® 15W-50 100% Synthetic Racing Oil

Product code : RD501G-EA

5 star rating
Read 90 reviews

AMSOIL DOMINATOR® 15W-50 100% Synthetic Racing Oil

Product code : RD501G-EA

5 star rating
Read 90 reviews
Current price:

$78.39

Retail Price
Warning - Click here for Proposition 65 information for this product
Estimated delivery by Mon, Jun 8 to Columbus - 43215.

    • Formulated specifically for racing & high-performance engines
    • Robust formulation resists viscosity loss
    • Proprietary friction modifier maximizes horsepower & torque
    • Fortified with anti-wear additives for extra 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

  • Multi-viscosity, shear-stable synthetic race formula engineered to maximize power while providing outstanding engine protection. Heavily fortified with zinc and phosphorus additives to protect critical surfaces in extreme conditions. Proprietary friction modifier maximizes power and reduces engine temperatures. Durable additive system is excellent for racing and street engines.

    See the product data sheet for full details.

    FIGHTS ENGINE WEAR

    • Durable formulation resists viscosity loss due to mechanical shear to maintain a strong protective oil film.
    • Heavily fortified with zinc and phosphorus anti-wear additives to provide additional protection against scuffing and wear in severe racing conditions.

    MAXIMIZES HORSEPOWER

    • Formulated with a proprietary friction modifier to reduce energy lost to friction.
    • Delivers maximum horsepower and cooler engine temperatures, promoting improved lap times and longer-lasting components.

    EXCELLENT ALL-TEMPERATURE PERFORMANCE

    • Low pour point offers excellent startup protection and provides less drag when the oil has not reached operating temperature.
    • Maintains superior film strength in extreme heat.
    • Thermally stable synthetic chemistry resists the effects of intense heat common to racing engines to provide reliable protection for the duration of the race.

    See the product data sheet for full details.

  • Data Bulletin

    Warranty

    SDS



  • 5 star rating
    Based on 90 reviews
    See all customer reviews
    • 5 star rating
      Dominator racing oil.
      By  JAMES,  a  Verified Buyer  from  Dalton Ga.  on  May 08, 2026
      I have been using Dominator Racing 15w50 since i built this engine in 2013. Approximately 400 hundred drag races . This spring removed and disassembled to freshen. Found almost zero wear.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      I only seek The Proven Best
      By  DAVID,  a  Verified Buyer  from  Oakville Ontario   on  April 30, 2026
      I've been using Amsoil for over 20 years. Three boats, two jet skis, Toyotas, GMC van, A class RV, Class B RV.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      AMSOIL DOMINATOR® 15W-50 100% Synthetic Racing Oil
      By  Eugene,  a  Verified Buyer  from  NY, Brooklyn  on  February 28, 2026
      Quality is excellent. Bought it for adding during hot weather. Recommend this oil to any one.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      AMSOIL DOMINATOR® 10W-40 100% Synthetic Racing Oil
      By  Eugene,  a  Verified Buyer  from  NY, Brooklyn  on  February 28, 2026
      Quality is excellent. Bought it for adding year around. I am recommend this oil to any one.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Professor
      By  ROBERT,  a  Verified Buyer  from  California  on  February 21, 2026
      I got introduced to Amsoil in 1978 I built strictly race engines four and two strokes . I am on my 56th year of building raceengines. I’ve yet to find a better productproduct. It’s the best you can take that to the bank.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      AMSOIL DOMINATOR® 10W-30 100% Synthetic Racing Oil
      By  Eugene,  a  Verified Buyer  from  NY, Brooklyn  on  February 10, 2026
      I've bought this oil for adding to crankcase oil. Quality is high and this oil will serve very well to enhance general quality of all remaining oil. High TBN ( 8 ) will allow use all oil to the reasonable end.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      AMSOIL DOMINATOR® SAE 60 100% Synthetic Racing Oil
      By  Eugene,  a  Verified Buyer  from  NY, Brooklyn  on  February 04, 2026
      I've bought this oil for summer time adding. 500 cm3 ( 500ml ) above normal level will not hurt engine, but will effectively decrease engine temperature. I do believe in AMS quality and recommend this oil every one.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      500hp turbo Honda D16A6 - a great match
      By  MATT,  a  Verified Buyer  from  Campton Hills, IL  on  January 05, 2026
      Running 10w40 Dominator in my King Motorsports-built turbo Honda D16A6. Great combination, noticeably quiet with less forged piston slap on cold starts. Has really consistent shear stability for higher revs. I run Pennzoil ultra platinum in my daily drivers because I do frequent oil changes, but anything I own that sees fewer miles per year gets Amsoil!
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Race will absolute confidence
      By  JoyBoy,  a  Verified Buyer  from  Las Vegas,NV  on  January 05, 2026
      Never used Amsoil Race oil in my EVO 9 2.2L 4G63 7 bolt stroked engine aftermarket turbocharged full race prepped! Just got it on a dyno last week and it made 5 additional hp! We ran It 4x times and each time it made the same increase! Amazing! Stayed temperature stable too, normally on the dyno it gets a little warm. Awesome engine oil!
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      15 50 racing oil
      By  ZACHARY,  a  Verified Buyer  from  Asheboro   on  December 24, 2025
      First time using this product but every person I've talked to said the oil is awesome. Ill be seeing for myself to verify. Im sure I want be disappointed.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?

    • Formulated specifically for racing & high-performance engines
    • Robust formulation resists viscosity loss
    • Proprietary friction modifier maximizes horsepower & torque
    • Fortified with anti-wear additives for extra 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.

  • Multi-viscosity, shear-stable synthetic race formula engineered to maximize power while providing outstanding engine protection. Heavily fortified with zinc and phosphorus additives to protect critical surfaces in extreme conditions. Proprietary friction modifier maximizes power and reduces engine temperatures. Durable additive system is excellent for racing and street engines.

    See the product data sheet for full details.

    FIGHTS ENGINE WEAR

    • Durable formulation resists viscosity loss due to mechanical shear to maintain a strong protective oil film.
    • Heavily fortified with zinc and phosphorus anti-wear additives to provide additional protection against scuffing and wear in severe racing conditions.

    MAXIMIZES HORSEPOWER

    • Formulated with a proprietary friction modifier to reduce energy lost to friction.
    • Delivers maximum horsepower and cooler engine temperatures, promoting improved lap times and longer-lasting components.

    EXCELLENT ALL-TEMPERATURE PERFORMANCE

    • Low pour point offers excellent startup protection and provides less drag when the oil has not reached operating temperature.
    • Maintains superior film strength in extreme heat.
    • Thermally stable synthetic chemistry resists the effects of intense heat common to racing engines to provide reliable protection for the duration of the race.

    See the product data sheet for full details.

  • Data Bulletin

    Warranty

    SDS



  • 5 star rating
    Based on 90 reviews
    See all customer reviews
    • 5 star rating
      Dominator racing oil.
      By  JAMES,  a  Verified Buyer  from  Dalton Ga.  on  May 08, 2026
      I have been using Dominator Racing 15w50 since i built this engine in 2013. Approximately 400 hundred drag races . This spring removed and disassembled to freshen. Found almost zero wear.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      I only seek The Proven Best
      By  DAVID,  a  Verified Buyer  from  Oakville Ontario   on  April 30, 2026
      I've been using Amsoil for over 20 years. Three boats, two jet skis, Toyotas, GMC van, A class RV, Class B RV.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      AMSOIL DOMINATOR® 15W-50 100% Synthetic Racing Oil
      By  Eugene,  a  Verified Buyer  from  NY, Brooklyn  on  February 28, 2026
      Quality is excellent. Bought it for adding during hot weather. Recommend this oil to any one.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      AMSOIL DOMINATOR® 10W-40 100% Synthetic Racing Oil
      By  Eugene,  a  Verified Buyer  from  NY, Brooklyn  on  February 28, 2026
      Quality is excellent. Bought it for adding year around. I am recommend this oil to any one.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Professor
      By  ROBERT,  a  Verified Buyer  from  California  on  February 21, 2026
      I got introduced to Amsoil in 1978 I built strictly race engines four and two strokes . I am on my 56th year of building raceengines. I’ve yet to find a better productproduct. It’s the best you can take that to the bank.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      AMSOIL DOMINATOR® 10W-30 100% Synthetic Racing Oil
      By  Eugene,  a  Verified Buyer  from  NY, Brooklyn  on  February 10, 2026
      I've bought this oil for adding to crankcase oil. Quality is high and this oil will serve very well to enhance general quality of all remaining oil. High TBN ( 8 ) will allow use all oil to the reasonable end.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      AMSOIL DOMINATOR® SAE 60 100% Synthetic Racing Oil
      By  Eugene,  a  Verified Buyer  from  NY, Brooklyn  on  February 04, 2026
      I've bought this oil for summer time adding. 500 cm3 ( 500ml ) above normal level will not hurt engine, but will effectively decrease engine temperature. I do believe in AMS quality and recommend this oil every one.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      500hp turbo Honda D16A6 - a great match
      By  MATT,  a  Verified Buyer  from  Campton Hills, IL  on  January 05, 2026
      Running 10w40 Dominator in my King Motorsports-built turbo Honda D16A6. Great combination, noticeably quiet with less forged piston slap on cold starts. Has really consistent shear stability for higher revs. I run Pennzoil ultra platinum in my daily drivers because I do frequent oil changes, but anything I own that sees fewer miles per year gets Amsoil!
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Race will absolute confidence
      By  JoyBoy,  a  Verified Buyer  from  Las Vegas,NV  on  January 05, 2026
      Never used Amsoil Race oil in my EVO 9 2.2L 4G63 7 bolt stroked engine aftermarket turbocharged full race prepped! Just got it on a dyno last week and it made 5 additional hp! We ran It 4x times and each time it made the same increase! Amazing! Stayed temperature stable too, normally on the dyno it gets a little warm. Awesome engine oil!
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      15 50 racing oil
      By  ZACHARY,  a  Verified Buyer  from  Asheboro   on  December 24, 2025
      First time using this product but every person I've talked to said the oil is awesome. Ill be seeing for myself to verify. Im sure I want be disappointed.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?

Choose your location

Delivery options and speeds may vary for different locations.

Log in to see your addresses