AMSOIL Shipping Information
Online Store Order FREE Product Catalog Preferred Customer Program Business Accounts Dealership Opportunity
Email Price List

Dominator® Synthetic 15W-50 Racing Oil (RD50)

 Dominator® Synthetic 15W-50 Racing Oil (RD50)
Product Code: RD50 • Brand: AMSOIL

AMSOIL Dominator® Synthetic 15W-50 Racing Oil (RD50) provides superior performance and maximum protection in high-performance and racing applications. Formulated to withstand the elevated RPM, high temperatures and shock-loading common to racing applications, Dominator Synthetic 15W-50 Racing Oil delivers superior performance and maximum protection in extreme conditions.

Package sizes include:

1-Quart Bottle
1-Quart Bottles (case of 12)
1-Gallon Bottle
1-Gallon Bottles (case of 4)
55-Gallon Drum

See Pricing or Place an Order
MSDS Data Sheet

Product Details

Product Applications

AMSOIL Dominator Synthetic 15W-50 Racing Oil is recommended for high-rpm, high-horsepower, turbo/supercharged, gasoline- or alcohol-burning, nitro-fueled or nitrous oxide gas-injected applications operated under severe conditions.

Product Application Specs

Applications include, but are not limited to, the following:
• Asphalt Late Model • Dirt Late Model • Modified Big Block • Ford Crate Late Model • Dodge Crate Late Model • Endurance • Rally • Sprint • Truck-Pull • Aluminum Block • Marine • Other high-performance racing and street applications requiring 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 EaAR 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).

Product Description

AMSOIL Dominator® Synthetic 15W-50 Racing Oil (RD50) provides superior performance and maximum protection in high-performance and racing applications. Formulated to withstand the elevated RPM, high temperatures and shock-loading common to racing applications, Dominator Synthetic 15W-50 Racing Oil delivers superior performance and maximum protection in extreme conditions. Its shear-stable formulation was engineered to provide maximum horsepower without sacrificing engine protection. Dominator Synthetic 15W-50 Racing Oil 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.

MAXIMUM DURABILITY, MAXIMUM WEAR PROTECTION

AMSOIL Dominator Synthetic Racing Oil features an additive package heavily fortified with zinc and phosphorus for superior long-term wear protection. Designed for maximum durability, it ensures critical engine components are protected for the duration of the race. Dominator Synthetic Racing Oil's superior additive technology provides unmatched durability in extreme conditions. In addition, its high levels of zinc and phosphorus additives make it ideal for street rods, muscle cars and other vehicles with flat-tappet cams.

Four Ball Wear Test

SUPERIOR PERFORMANCE

Dominator Synthetic Racing Oil's proprietary friction modifier provides reduced friction for maximum power and cooler engine temperatures, resulting in improved lap times and longer-lasting equipment.

PROTECTION FROM STARTUP TO THE CHECKERED FLAG

Dominator Synthetic 15W-50 Racing Oil's multi-viscosity design provides maximum protection in temperature extremes. Dominator Racing Oil offers excellent coldstart protection and provides less drag when engine oil has not reached stable operating temperatures. It maintains superior film strength during high-temperature operation on the track.

SUPERIOR-QUALITY OILS, NO DISCRIMINATION

Many oil companies produce specialty racing oils for elite groups and do not offer them to the general public. For instance, several popular oil manufacturers produce racing oils offered only to NASCAR racers. 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 and Brady Smith, are available to everyone.

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).

Click here to view the MSDS Data Sheet for AMSOIL RD50.

Keep out of the reach of children. Don't pollute. Return used oil to collection centers.

Technical Data

TYPICAL TECHNICAL PROPERTIES
Dominator® Synthetic 15W-50 Racing Oil (RD50)
Kinematic Viscosity @ 100°C, cSt (ASTM D-445) 17.5
Kinematic Viscosity @ 40°C, cSt (ASTM D-445) 119.6
Viscosity Index (ASTM D-2270) 162
CCS Viscosity (°C), cP (ASTM D-5293) 6695 (-20)
Pour Point °C (°F) (ASTM D-97) -36 (-33)
Flash Point °C (°F) (ASTM D-92) 234 (453)
Fire Point °C (°F) (ASTM D-92) 248 (478)
Four Ball Wear Test
(ASTM D-4172: 60 kgf, 150°C, 1800 rpm, 1 hr), Scar, mm
0.47
Noack Volatility, % weight loss (g/100g) (ASTM D-5800) 8.0
Shear Stability Kurt Orbahn (ASTM D-6278),
% viscosity change 90 cycles.
6.3
High-Temperature/High-Shear Viscosity,
150ºC, 1.4x106s-1, cP (ASTM D-5481)
5.4

 Dominator® Synthetic 15W-50 Racing Oil (RD50)

Did this product meet your expectations?

(click on a star to rate)

Product Name: Racing Motor Oils
Current Rating: 4.86 out of 5 stars
Votes & Reviews: 28 vote(s) and 74 user reviews.


A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by moros323: space

This is top notch racing oil!

I have been running Amsoil in my last 3 cars I love it and the protection it offers!

Item Reviewed: Racing Motor Oils
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Classic's for life: space

I would buy this again

Bought it for a 73 mustang. Love the product.

Item Reviewed: Racing Motor Oils
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dave: space

The best

Perfect for a air cool VW

Item Reviewed: Racing Motor Oils
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by the Painter: space

Hot Rod Oil

I bought this oil based on the fact that it has extra added Zinc for flat tappet cams generally used in hot rod motors and the fact it is known in the hobby to be excellent oil.

Item Reviewed: Racing Motor Oils
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by cmart: space

Great for high zinc engines

Used product for engine with high compression and required high zinc content

Item Reviewed: Racing Motor Oils
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Huck: space

I like Amsoil prodoucts.

I have a '73 Bronco with a 302 V-8 engine. It has a mild flat tappet cam and a few other goodies. Because of the 'flat tappet cam' the engine needs oil with zinc. The Amsoil Z-ROD Syn. is exactly what the 302 ci. needs as it contains high levels of ZDDP for max. protection.

Item Reviewed: Racing Motor Oils
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by CharlieB: space

Good for Old Jeeps

I use this product in my 1952 M38A1 Willy's Army Jeep
The engine runs quiet and smooth with this oil

Item Reviewed: Racing Motor Oils
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike "Mad Scientist": space

Great products for my business/shop.

I have been a long time Amsoil user myself for all my racecar/street car applications. When I opened my shop it was only fitting to stick with the best! All my customers cars/builds get Z-rod or Dominator series and with great results.

Item Reviewed: Racing Motor Oils
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Robert: space

Love amsoil

Amszoil is the best Oil I've ever used I'm back to using it after realizing the higher price is worth the way higher quality

Item Reviewed: Racing Motor Oils
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by G: space

Good stuff!

Use in my 1969 Corvette.
Plan to start using in my 79 280ZX and 80 Bronco

Item Reviewed: Racing Motor Oils
Discussion Url
View All 74 Reviews

Share your AMSOIL Experience
by writing a review


smaller | bigger

1-800-615-3709

Price List Request

Receive wholesale price list in your email.