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Dominator® Synthetic 5W-20 Racing Oil (RD20)

 Dominator Synthetic 5W-20 Racing Oil (RD20)
Product Code: RD20 • Brand: AMSOIL

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.

Package sizes include:

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

See Pricing or Place an Order
MSDS Data Sheet

Product Details

Product Applications

DOMINATOR Synthetic Racing Oil is compatible with leaded and unleaded gasoline, diesel, alcohol, nitromethane and nitrous oxide.

Use DOMINATOR 5W-20 Synthetic Racing Oil in domestic and import racing and high-performance street engines where an SAE 20 viscosity oil is suitable, including (not limited to):

Product Application Specs

• Modified small block
• Asphalt late model
• Bracket
• Midget

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 synthetic, providing maximum protection and extended filter life.

Product Description

AMSOIL DOMINATOR® Synthetic Racing Oil provides superior performance and maximum protection in high-performance and racing applications. DOMINATOR is engineered 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.

Fights Engine Wear

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.

Maximizes Horsepower

DOMINATOR is formulated with a proprietary friction modifier to reduce energy lost to friction. It delivers 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

Excellent All-Temperature Performance

DOMINATOR provides maximum protection in temperature extremes. Its low pour point offers excellent start-up 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. For example, several popular oil manufacturers produce racing oils offered only to NASCAR teams. DOMINATOR Synthetic Racing Oil is already formulated to a high level of performance. It provides maximum performance and superior protection to all racers, regardless of their competition level. The same DOMINATOR Synthetic Racing Oil that is used in the engines of AMSOIL corporately sponsored racers, including Scott Douglas and Brad Lovell, is available to everyone.

Service Life

Consider the event, application and viscosity needs. When competing, the vehicle owner is responsible for determining an appropriate oil service interval. DOMINATOR is not intended for long-term use in passenger cars/light trucks.

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 RD20.

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

Technical Data

TYPICAL TECHNICAL PROPERTIES
Dominator® Synthetic 5W-20 Racing Oil (RD20)
Kinematic Viscosity @ 100°C, cSt (ASTM D-445) 9.0
Kinematic Viscosity @ 40°C, cSt (ASTM D-445) 50.8
Viscosity Index (ASTM D-2270) 158
CCS Viscosity (°C), cP (ASTM D-5293) 4954 (-30)
Pour Point °C (°F) (ASTM D-97) -48 (-54)
Flash Point °C (°F) (ASTM D-92) 232 (450)
Fire Point °C (°F) (ASTM D-92) 246 (475)
Four Ball Wear Test
(ASTM D-4172B: 40 kgf, 150°C, 1800 rpm, 1 hr), Scar, mm
0.39
Noack Volatility, % weight loss (g/100g) (ASTM D-5800) 8.0
High-Temperature/High-Shear Viscosity 150°C, 1.4 x 106s-1, cP (ASTM D5481) 3.1

 Dominator Synthetic 5W-20 Racing Oil (RD20)

Did this product meet your expectations?

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Product Name: Racing Motor Oils
Current Rating: 5 out of 5 stars
Votes & Reviews: 15 vote(s) and 84 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 Jeremy: space

Great product, I'll be purchasing more soon

Great product and customer service

Item Reviewed: Racing Motor Oils
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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 John: space

I've used it for years and feel it is the best you can buy

Necessary to maintain the 1966 396 engine in my Super Sport. Full synthetic has many added values over conventional oil especially in cars that get low mileage, irregular usage.

Item Reviewed: Racing Motor Oils
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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 Stephen: space

Best oil

Great oil for my 60 yr old car, I also amsoil in modern cars better fuel mileage

Item Reviewed: Racing Motor Oils
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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 Delbert: space

Love it!

As usual awesome stuff!

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 Jeremiah: space

I'm sure I won't be disappointed

I use Amsoil in all my vehicles. Bought this for my 1977 Ford F-250 after the top end of the original 351M was rebuilt. Thought it would be the right choice for this classic motor. Time will tell.

Item Reviewed: Racing Motor Oils
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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 Brenda: space

Older Cars:

This is beneficial to eliminate wear in older cars from the oil not having zinc. Very happy with this product and recommend it.

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 Eric: space

I will buy this oil again, it is the only oil to use

I use this oil in a pair of merc 540's, which have been dyno'd over 600hp. It's the only oil I will use and with over 300 hours on these engines, this says it all.

Item Reviewed: Racing Motor Oils
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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 Ron: space

BMW OIL

Great oil for BMW airheads

Item Reviewed: Racing Motor Oils
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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 perfect "old car" oil

I've used Amsoil for years in all my diesels now it's time for my old cars too. Great product and I'm very happy with the results

Item Reviewed: Racing Motor Oils
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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 Dennis: space

Pampering my baby!

This goes into my '69 Corvette, 427 internal protection is the target for this oil. I like the rust inhibitor that is present to protect the internal components of the engine when it is inactive and the over all protection when I take her out for a drive. A good oil at a good price.

Item Reviewed: Racing Motor Oils
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