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PRODUCT DESCRIPTION
AMSOIL Dominator® Synthetic 5W-20 Racing Oil (RD20)
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 5W-20 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 5W-20 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 5W-20 Racing Oil’s superior
additive technology provides unmatched durability in
extreme conditions. In addition, its light viscosity makes
it ideal for high-performance tuner cars and sub-compact
vehicles.

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 5W-20 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 5W-20 Racing Oil is recommended
for high-rpm, high-horsepower, turbo/supercharged,
gasoline- or alcohol-burning and nitrous oxide
gas-injected applications operated under severe conditions.
Applications include, but are not limited to, the following:
• Modified Small Block • Asphalt Late Model • GM Crate
Late Model • NHRA Stock Eliminator • Bracket • Midget • Legends • Karts • Junior Dragster • Other domestic and
import high-performance racing and street applications
requiring 20-weight oil. The low-viscosity formulation and
robust additive package of Dominator 5W-20 make it ideal
for use as a high-strength qualifying 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. Don’t pollute. Return
used oil to collection centers.
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) |
49.6 |
Viscosity
Index (ASTM D-2270) |
165 |
CCS Viscosity (°C), cP (ASTM D-5293) |
5695 (-30) |
Pour Point
°C (°F) (ASTM D-97) |
-45 (-49) |
Flash Point
°C (°F) (ASTM D-92) |
225 (437) |
Fire Point
°C (°F) (ASTM D-92) |
241 (466) |
Four Ball
Wear Test
(ASTM D-4172B: 40 kgf, 75°C, 1200 rpm,
1 hr), Scar, mm |
0.49 |
Noack
Volatility, % weight loss (g/100g) (ASTM
D-5800) |
8.0 |
Shear Stability Kurt Orbahn (ASTM D-6278),
% viscosity change 90 cycles. |
<3.0 |
High-Temperature/High-Shear Viscosity,
150ºC, 1.4x106s-1, cP (ASTM D-5481) |
3.0 |
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