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

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
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.

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.
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.
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).
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 upon request at 715-392-7101 or via the
Internet at www.amsoil.com. Keep Out of Reach of Children.
Don’t pollute. Return used oil to collection centers.
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TYPICAL
TECHNICAL
PROPERTIES
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Dominator® Synthetic
15W-50 Racing Oil
(RD50)
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Kinematic
Viscosity @ 100°C, cSt
(ASTM D-445)
|
17.5
|
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Kinematic
Viscosity @ 40°C, cSt
(ASTM D-445)
|
119.6
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Viscosity
Index (ASTM D-2270)
|
162
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CCS
Viscosity (°C), cP (ASTM
D-5293)
|
6695
(-20)
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Pour Point
°C (°F) (ASTM D-97)
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-36
(-33)
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Flash Point
°C (°F) (ASTM D-92)
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234
(453)
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Fire Point
°C (°F) (ASTM D-92)
|
248
(478)
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Four Ball
Wear Test
(ASTM D-4172B: 40 kgf,
75°C, 1200 rpm, 1 hr),
Scar, mm
|
0.47
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Noack Volatility, %
weight loss (g/100g)
(ASTM D-5800)
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8.0
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Shear
Stability Kurt Orbahn
(ASTM D-6278), %
viscosity change 90
cycles.
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6.3
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High-Temperature/High-Shear
Viscosity, 150ºC,
1.4x106s-1, cP (ASTM
D-5481)
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5.4
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