Severe Gear® Synthetic Off-Road and Drag Racing Gear Lubricant
SAE 250
PRODUCT DESCRIPTION
AMSOIL Severe Gear Synthetic SAE
190 and SAE 250 Gear Lubricants are premium grade, extreme
pressure gear lubes engineered specifically for the demands of
severe racing conditions. They are formulated with shear stable,
heavy synthetic base oils for “high film strength” and
extra heavy treatments of additives. Their synthetic formulations
provide improved flow over conventional oils, reducing viscous
drag and power loss. Severe Gear SAE 190 and SAE 250 Gear Lubes
provide a barrier cushion between metal surfaces that absorbs
impact. AMSOIL proprietary extreme pressure additives form an
iron-sulfide barrier coating on gear surfaces for the ultimate
line of defense against wear, pitting and scoring.
PERFORMANCE
AMSOIL Severe Gear Synthetic SAE
190 and SAE 250 Gear Lubricants are specifically engineered
for high horsepower, high torque conditions where centrifugal
gear lube sling-off is encountered. These tenacious formulations
cling to gears and bearings for the best possible protection during
shock loading, high G-forces and where pinion gears are installed
at steep angles. Custom Severe Gear Synthetic Gear Lubricants
provide exceptional reliability and extended gear life.
Protects gears from shock loading and tire
shake
Resists sling-off from G-forces and high speeds
Clings to gears - high pinion style and at
steep angles
Promotes cooler operating temperatures
Protects against rust and corrosion
Extends gear and bearing life
APPLICATIONS
AMSOIL Severe Gear Synthetic SAE
190 and SAE 250 Gear Lubricants are excellent for severe differential
applications, including off-road truck racing, rock racing, rock
crawling, tractor pulling, funny car racing and dragster racing.
Other severe duty applications include heavy duty trucks and equipment
where increased lubricant film is necessary. These oils are recommended
for use in hypoid gear differentials and other applications requiring
a high viscosity, API GL-5 gear lube. Where limited slip performance
is required, use AMSOIL Slip-Lock® limited slip additive.
TYPICAL TECHNICAL
PROPERTIES
Severe Gear® Synthetic Off-Road and Drag
Racing Gear Lubricant SAE 250 (SRN)
SAE 250
Kinematic Viscosity @ 100°C, cSt (ASTM D-445)
47.4
Kinematic Viscosity @ 40°C, cSt (ASTM D-445)
502.7
Viscosity Index (ASTM D-2270)
151
Flash Point °C (°F) (ASTM D 92) 150°C Min.
222 (432)
Pour Point °C (°F) (ASTM D 97)
-26 (-15)
Copper Corrosion (ASTM D-130) 2a Max.
@ 121 °C (250°F)/3hr.
1b
Falex Procedure B (ASTM D-3233) (failure
load, lbf.)
2500
Four Ball Wear Test
(ASTM D4172B @ 40 kgf, 75 °C, 1200 rpm, 1 hr), Scar, mm
0.41
Service Life
AMSOIL Severe Gear Synthetic
SAE 190 and SAE 250 Gear Lubricants are
intended for severe racing and other applications where extended
drain intervals are not beneficial. AMSOIL recommends changing
the lubricant as conditions dictate. Where extended drain intervals
are desired, AMSOIL recommends monitoring by oil analysis.
Mixing AMSOIL
AMSOIL Severe Gear Synthetic SAE
190 and SAE 250 Gear Lubricants are compatible with conventional
and synthetic automotive gear oils. Mixing AMSOIL gear oils with
other oils, however, will shorten the oil life expectancy and
reduce the performance benefits. Aftermarket oil additives, other
than those specified by AMSOIL, are not recommended for use with
AMSOIL gear oils.
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. Keep out of
reach of children. Don’t pollute. Return used oil to collection
centers.
