NEW AMSOIL Preferred Customer Program

DOMINATOR® 5W-20 Racing OilHelp

DOMINATOR® 5W-20 Racing Oil Product Image
Click image to enlarge
$13.40 Retail Price (USD)
Package Size:
Unit of Measure:
QTY:
Product Code: RD20QT-EA
Product Highlights View Full Description

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.

PRODUCT DESCRIPTION
AMSOIL DOMINATOR® Synthetic 5W-20 Racing Oil (RD20) 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).

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 5W-20 Synthetic Racing Oil is recommended for modified small block, asphalt late model, bracket, midget and other domestic and import high-performance racing and street applications that require a 20-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.

RD20 Package Sizes
Code Package Size Unit of Measure Product
RD20QT (RD20QT-EA) Quart Each DOMINATOR® Synthetic 5W-20 Racing Oil
RD20QT (RD20QT-CA) Quart Case of 12 DOMINATOR® Synthetic 5W-20 Racing Oil
RD2055 (RD2055-EA) 55-Gallon Drum Each DOMINATOR® Synthetic 5W-20 Racing Oil
More about AMSOIL Reviews

REVIEW SNAPSHOT®

by PowerReviews
AMSOILZ-ROD 20W-50 Synthetic Motor Oil
 
4.8

(based on 26 reviews)

Ratings Distribution

  • 5 Stars

     

    (24)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (0)

94%

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

 

I would not buy this product again

They say it's designed for older engines but it's not. Once your engine is at operating temperature the oil pressure drops below 10psi at idle because the oil is just too thin.

They say it's designed for older engines but it's not. Once your engine is at operating temperature the oil pressure drops below 10psi at idle because the oil is just too thin.

Reviewed by 26 customers

Displaying reviews 1-10

Back to top

Previous | Next »

 
5.0

Only Amsoil

By 

from Prescott AZ

Verified Buyer

Comments about DOMINATOR 5W-20 Racing Oil:

I bought a 2000 Mustang GT 4.6l with 94,000 miles on it that might not ever have had an oil change. Amsoil brought it back to life and the pony intends to stay with me indefinitely.

  • How would you describe yourself?:
  • I'm a DIY handyman
  • What kind of vehicle/equipment do you have?:
  • 4.6l Mustang GT

(1 of 1 customers found this review helpful)

 
5.0

2nd purchase if this product

By 

from Bakersfield, CA

Verified Buyer

Comments about DOMINATOR 15W-50 Racing Oil:

use in my 2011 streetglide less valve train noise runs cooler

  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • 2011 HD Streetglide

(2 of 2 customers found this review helpful)

 
5.0

High zinc for my air cooled

By 

from Farmingville, NY

Verified Buyer

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

This product was recommended to me to use in my air cooled engine which is in my newly restored Dune Buggy. Due to it's high zinc content it is great for flat tappet motors and it's great lubrication on the engines moving parts. I will always use this product in my air cooled engine.

  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • 1971 Dune Buggy / VW Beetle

(1 of 1 customers found this review helpful)

 
5.0

Z-Rod oil

By 

from Cotter, AR

Verified Buyer

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

I build Street Rods and Amsoil Z-Rod oil is the best for the vehicles I build, as Street Rods set a lot over the winter and also during the summer months. This oil is perfect for thesesively type of vehicle and I've researched oil extensively at SEMA ever year!!! If you have a flat tappet cam engine you had better be using Z-Rod oil or your cam is living on borrowed time!!!! The zine and phosphorus was removed from most all oils to protect the Catalytic converters on late model vehicles, so if you have a early model engine there is no protection for that cam and lifters!!!!

  • How would you describe yourself?:
  • I'm a professional mechanic
  • What kind of vehicle/equipment do you have?:
  • I have street rod cars with big engines!

(1 of 1 customers found this review helpful)

 
5.0

Classic car excellent

By 

from Long grove, ia

Verified Buyer

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

I now use this in all my classic cars, and street rod

  • How would you describe yourself?:
  • I'm a DIY handyman
  • What kind of vehicle/equipment do you have?:
  • Two classic cars and a street rod

(1 of 1 customers found this review helpful)

 
5.0

Works great

By 

from Marathon, Wisconsin

Verified Buyer

Comments about DOMINATOR 15W-50 Racing Oil:

Does it's job as long as the owner keeps oil in the motor!

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

(1 of 1 customers found this review helpful)

 
5.0

Dominator Series

By 

from Virginia Beach

Verified Buyer

Comments about DOMINATOR 15W-50 Racing Oil:

Awesome lubricant for your racing !

  • How would you describe yourself?:
  • I'm a DIY handyman
  • What kind of vehicle/equipment do you have?:
  • Evo 9

(1 of 1 customers found this review helpful)

 
5.0

I love zrod

By 

from Ft Lauderdale, fl

Verified Buyer

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

I use this in my 90k mile evo to help combat the effects for e85

  • How would you describe yourself?:
  • I'm a full-on gearhead
  • What kind of vehicle/equipment do you have?:
  • 06 Mitsubishi lancer evolution

(1 of 1 customers found this review helpful)

 
5.0

20/50 z rod in my Dart

By 

from Marysville. California

Verified Buyer

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

I drive my 68 Dart 2 dr sedan constantly !!!! Literally !!!! It is small block mild with 3 speed auto. And Z Rod Is All I run It Along With Synthetic oil filter and go air filter all AMS Oil Products!!! Recommend it to Everyone !!

  • How would you describe yourself?:
  • I'm a professional mechanic
  • What kind of vehicle/equipment do you have?:
  • 68 Dart 2dr. sedan
 
5.0

Best oil....period!!!!

By 

from Grayslake Illinois

Verified Buyer

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

Using the ZROD in an old Ford LTD. AMSOIL has the best oil and a specific oil for everything

Displaying reviews 1-10

Back to top

Previous | Next »