AMSOIL DOMINATOR® 15W-50 Racing Oil
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DOMINATOR® 15W-50 Racing OilHelp

DOMINATOR® 15W-50 Racing Oil Product Image
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$14.40 Retail Price (USD)
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Product Code: RD50QT-EA
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Provides superior performance and maximum protection in high-performance and racing applications. DOMINATOR is engineered from advanced synthetic technology to better withstand the elevated rpm, high temperatures and shock-loading common to racing applications.

Scott Douglas: Trust It


PRODUCT DESCRIPTION
AMSOIL DOMINATOR® Synthetic 15W-50 Racing Oil (RD50) provides superior performance and maximum protection in high-performance and racing applications. DOMINATOR is engineered from advanced synthetic technology to better withstand the elevated rpm, high temperatures and shock-loading common to racing applications. Its robust formulation, tested and validated by championship race teams, is designed to provide maximum horsepower without sacrificing engine protection. DOMINATOR provides straight-grade protection in a multi-grade formulation.

AMSOIL, the leader in automotive synthetic lubrication, produced the world's first API-qualified synthetic motor oil in 1972. Trust the extensive experience of AMSOIL The First in Synthetics® to do the best job protecting your engine.

Anti-Wear Formulation
Racing and high-performance engines are typically modified to deliver maximum horsepower and speed. Their powerful designs create shearing forces that can cause lesser oils to lose viscosity, leaving bearings, pistons and other components vulnerable to wear and failure. DOMINATOR Synthetic Racing Oil's durable formulation resists viscosity loss due to mechanical shear to maintain a strong protective oil film. It is heavily fortified with zinc and phosphorus anti-wear additives to provide additional protection against scuffing and wear in severe racing conditions (see results below).

Piston Cam
The piston crown contains normal carbon, while the rings remain clean and functional. Note the absence of wear or scuffing on the piston skirt.The camshaft shows little-to-no scoring, bluing or wear after 3,000 miles of high-performance racing.

 

Maximum Horsepower
The excessive friction and heat of racing robs engines of power and longevity. DOMINATOR is formulated with a proprietary friction modifier for maximum horsepower and cooler engine temperatures, promoting improved lap times and longer-lasting components.

  • 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

Protection From Startup to the Checkered Flag
DOMINATOR provides maximum protection in temperature extremes. Its low pour point offers excellent cold-start protection and provides less drag when the oil has not reached stable operating temperatures. At elevated operating temperatures, it maintains superior film strength. DOMINATOR's thermally stable synthetic chemistry resists the effects of intense heat common to racing engines to provide reliable protection for the duration of the race.

Commercial Availability
Many oil companies produce specialty racing oils for elite groups and do not offer them to the general public. All AMSOIL synthetic motor oils are already formulated to a higher level of performance than competitors' oils, and AMSOIL DOMINATOR Synthetic Racing Oil is no exception. It provides maximum performance and superior protection to all racers, regardless of their level of competition. The same AMSOIL DOMINATOR Synthetic Racing Oil that is used in the engines of AMSOIL corporately sponsored racers, including Scott Douglas, Chad Hord and Brad Lovell are available to everyone.

APPLICATIONS
DOMINATOR 15W-50 Synthetic Racing Oil is recommended for asphalt late model, dirt late model, modified big block, endurance, rally, sprint, truck-pull, aluminum block, marine and other high-performance racing and street applications that require a 50-weight oil.

AMSOIL Ea® Racing Air Filters (EAAR) are specially designed for racing and street rod enthusiasts who desire AMSOIL Ea protection in carbureted applications. AMSOIL Ea Racing Air Filters are constructed with the same synthetic nanofiber media as other AMSOIL Ea Air Filters, providing maximum protection and extended filter life.

AMSOIL offers WIX Racing Oil Filters for racing applications. WIX racing filters are specially designed for racing applications only.

Oil Analyzers Inc®. (715-395-0222) is a division of AMSOIL that provides cost-effective, quality oil analysis services. For more information on product applications and service life,, refer to the AMSOIL Product Recommendation and Drain Interval Guide (G1490).

HEALTH & SAFETY
This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Material Safety Data Sheet (MSDS). An MSDS is available via the Internet at www.amsoil.com or upon request at (715) 392-7101. Keep Out of Reach of Children. Don’t pollute. Return used oil to collection centers.

For warranty information, visit www.amsoil.com/warranty.aspx.

RD50 Package Sizes
Code Package Size Unit of Measure Product
RD50QT (RD50QT-EA) Quart Each DOMINATOR® Synthetic 15W-50 Racing Oil
RD50QT (RD50QT-CA) Quart Case of 12 DOMINATOR® Synthetic 15W-50 Racing Oil
RD501G (RD501G-EA) Gallon Each DOMINATOR® Synthetic 15W-50 Racing Oil
RD501G (RD501G-CA) Gallon Case of 4 DOMINATOR® Synthetic 15W-50 Racing Oil
RD5055 (RD5055-EA) 55-Gallon Drum Each DOMINATOR® Synthetic 15W-50 Racing Oil
More about AMSOIL Reviews

REVIEW SNAPSHOT®

by PowerReviews
AMSOILZ-ROD 10W-30 Synthetic Motor Oil
 
4.9

(based on 77 reviews)

Ratings Distribution

  • 5 Stars

     

    (73)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (0)

99%

of respondents would recommend this to a friend.

Most Liked Positive Review

 

Z-ROD oil

I switched to ZROD oil for my vintage gto mainly for the zinc/phosphorus content. when I did I changed from a competitors 10w40 to amsoil 20w50 because of oil usage (believed to be...Read complete review

I switched to ZROD oil for my vintage gto mainly for the zinc/phosphorus content. when I did I changed from a competitors 10w40 to amsoil 20w50 because of oil usage (believed to be valve seal related) and oil consumption decreased significantly.

VS

Most Liked Negative Review

 

First time use

This is the first time using Z-Rod motor oil in my restomod 69 GTO prior to being stored for the winter. So far, looks like a good product, but need time to see...Read complete review

This is the first time using Z-Rod motor oil in my restomod 69 GTO prior to being stored for the winter. So far, looks like a good product, but need time to see how it performs over the next year.

Reviewed by 77 customers

Displaying reviews 1-10

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5.0

Great product

By 

from Dalas, TX

Verified Buyer

Comments about Z-ROD 20W-50 Synthetic Motor Oil:

I have two older cars with flat tappet equipped engines. the Z-Rod oil is perfect for this application. Plus being a full synthetic oil, I know my engines are getting the best lubrication and protection available. As an aside, I also use Amsoil in my newer cars, not Z-Rod though!

  • How would you describe yourself?:
  • I'm a full-on gearhead
  • What kind of vehicle/equipment do you have?:
  • 1957 Chevy and 1951 Studebaker
 
5.0

Yes

By 

from Alabama

Verified Buyer

Comments about DOMINATOR 10W-30 Racing Oil:

In my Race car

  • How would you describe yourself?:
  • I'm a professional mechanic
  • What kind of vehicle/equipment do you have?:
  • Shop at home
 
5.0

Always use amsoil

By 

from Edgewater, FL.

Verified Buyer

Comments about Z-ROD 20W-50 Synthetic Motor Oil:

I have a 1955 Chevy 2dr sedan, with 383 stroker
Motor.
Feel comfortable using zrod in it

  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • 55 chev
 
5.0

Classic car oil

By 

from Louisiana

Verified Buyer

Comments about Z-ROD 10W-30 Synthetic Motor Oil:

I have been an Amsoil customer for over 15 years and they keep coming out with great products. I use nothing but Amsoil in all my toys.

  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • 1976 Corvette and 1979 Pontiac Firebird
 
5.0

I would recommend

By 

from Raleigh, NC

Verified Buyer

Comments about DOMINATOR 10W-30 Racing Oil:

I bought this to use in my 2003 Lancer Evolution that is making 425 HP to the wheels and since switching my engine runs cooler and drives smoother. When I do oil changes it is still that beautiful red color and isn't black at all. I would recommend this oil to anyone who is running a high HP setup.

  • How would you describe yourself?:
  • I'm a full-on gearhead
  • What kind of vehicle/equipment do you have?:
  • 2003 EVO
 
5.0

Great product

By 

from Indiana

Verified Buyer

Comments about DOMINATOR 5W-20 Racing Oil:

I have a 2015 Ram 1500. I have used the product after 5k miles and now have 45k miles. I change the oil every 10k because I am overly cautious. I am very pleased with Amsoil so far. It not scientific but the truck "feels like" it has more pep, and the engine is quieter compared to the factory's filled oil.

  • How would you describe yourself?:
  • I'm a professional mechanic
 
5.0

ONLY OIL I'LL PUT IN !

By 

from VAN BUREN< MO>

Verified Buyer

Comments about Z-ROD 10W-30 Synthetic Motor Oil:

PUT Z-ROD IN FRESH ENGINE AFTER BREAK IN, RAN 15,000 MILES AND IT WAS AMAZINGLY CLEAN, ALSO USE IT IN ALL MY AIR COOLED ENGINES. THEY ALL RUN QUIETER & EASE STARTING !

  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • 1956 CHRYSLER IMPERIAL, 354HEMI
 
5.0

I will buy this countlessly

By 

from Norco,ca

Verified Buyer

Comments about Z-ROD 10W-30 Synthetic Motor Oil:

Theres nothing else out there likeit if your looking for that zinc protection

  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • 1950 willys jeep truck 4x4
 
5.0

I would purchase this product again

By 

from Lincoln University Pa

Verified Buyer

Comments about DOMINATOR 10W-30 Racing Oil:

Product lives up to its credentials

  • How would you describe yourself?:
  • I'm a professional mechanic
  • What kind of vehicle/equipment do you have?:
  • Collector/Race Car 70 Skylark
 
5.0

Best product on the market

By 

from Warwick Rhode Island

Verified Buyer

Comments about DOMINATOR 15W-50 Racing Oil:

I use amsoil to n all my vehicles from track cars to my every day driver even my motorcycle and never been happier thank amsoil for your a-1 products

  • How would you describe yourself?:
  • I'm a full-on gearhead
  • What kind of vehicle/equipment do you have?:
  • Race cars and every vehicle I own

Displaying reviews 1-10

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