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Your order may take longer than normal to arrive. We are experiencing extremely high demand and freight carriers are experiencing delays nationwide. LTL shipments are most severely affected.

DOMINATOR® 5W-20 Racing Oil

Product code : RD20QT-EA

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

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

Warning - Click here for Proposition 65 information for this product

DOMINATOR® 5W-20 Racing Oil



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.

DOMINATOR® 5W-20 Racing Oil



DOMINATOR® 5W-20 Racing Oil

  • 5
    Comparison tests
    By  LYNN,  a  Verified Buyer  from  Washington state  on  October 16, 2021

    Describe the issue

    I’ve watched a lot of oil test on YouTube and ams oil beat every other brand tested, some by a large margin- volitility, lubricity,cold flow, etc. Fast delivery was a plus.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Amsoil Z Rod.
    By  JACK,  a  Verified Buyer  from  Santa Clarita Ca.  on  September 28, 2021

    Describe the issue

    I use nothing else in my classic car.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    I run Amsoil in everything I got
    By  Joel,  a  Verified Buyer  from  Alabama  on  September 27, 2021

    Describe the issue

    I started running Amsoil when I purchased my first Chevy 2500 with the Duramax engine in 2007, I became a Preferred Customer and when I need oil, Amsoil is what I buy, run the racing oil in my 2 camaro Hot Rods, run the Signature Series oil in my Honda Accord work car, purchased a new 2020 GMC Denali 2500 with the Duramax and at 2500 miles changed it to Amsoil Diesel Oil, also run the racing Transmission Fluid in my 2 hot rods and my old Duramax and will be changing the transmission fluid in my new truck in a few more miles, also run the Amsoil gear oil my hot rods and want to change my truck gear oil to Amsoil soon, have had no problems and hope that the Amsoil is going to make everything last longer, also run Amsoil filters on everything
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Excellent oil for performance small block chevy
    By  STEPHEN,  a  Verified Buyer  from  Victoria, BC  on  September 22, 2021

    Describe the issue

    Excellent quality oil, perfect for a performance small block Chevy engine with flat tappet camshaft.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Z-Rod, Great product
    By  Werner,  a  Verified Buyer  from  Chateauguay Qc.  on  September 15, 2021

    Describe the issue

    I started using Z-Rod motor oil in my 68 Charger last year. I have tried many other motor oils in my 440 engine. These big block engines create a lot of heat and are pretty tough on oil. With the Z-Rod oil, I find my engine runs cooler and just seems to run so much better. It's not uncommon for big block Chrysler engines to be topped up with oil every so often but with this oil, my engine doesn't require a top up nearly as often. This is my second case I've ordered and will run nothing else in my classic car.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Z-Rod 20w-50
    By  JODY,  a  Verified Buyer  from  Gainesville FL  on  September 14, 2021

    Describe the issue

    I have used Z-Rod 20W-50 in my 383 Stroker motor since 2014. This engine is on my Airboat and will often get run very hard for extended periods of time. The motor runs fantastic and does not use any oil. I would highly recommend this oil.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    dominator racing oil
    By  FRANK,  a  Verified Buyer  from  Canada  on  September 14, 2021

    Describe the issue

    Have been using a lot of different types of oil but I gotta meet this one here is number 1 this dominator is an awesome product
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Classic car oil
    By  DAN,  a  Verified Buyer  from  Sauk Centre   on  September 14, 2021

    Describe the issue

    Ordered the oil for my Classic Car within 2 days I had received it already. Definitely will order again
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    ZRod
    By  WILLIAM,  a  Verified Buyer  from  California   on  September 13, 2021

    Describe the issue

    I run Z-Rod in all my classics ,'64 Impala, '69 Stingray and my '63 Scout Model 80. I wouldn't trust these awesome rides to anything else.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    20W-50 ZROD
    By  ALEX,  a  Verified Buyer  on  September 07, 2021

    Describe the issue

    First time using this oil and I'm glad I discovered this AMSOIL product. My Range Rover has a Rover V8 that really needs the Zinc additive to prevent excess wear. This seems to be doing the trick. I pulled the dipstick 1500 miles in and the oil still looks fresh and clear with only a slight darkening. I believe this is going to be my go to oil from now on!
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?