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Product
Description
AMSOIL SEVERE GEAR® Synthetic Extreme Pressure (EP)
Lubricants are premium grade lubricants specifically engineered
for maximum performance in severe duty applications.
These state-of-the-art AMSOIL formulations feature an exclusive
blend of high viscosity, shear stable synthetic base oils
and an extra treatment of high-performance additives. AMSOIL
SEVERE GEAR® Synthetic EP Lubricants maintain their viscosity
for long-lasting protection against metal-to-metal contact.
The proprietary AMSOIL additives form an iron-sulfide
barrier coating on gear surfaces, providing the ultimate line of
defense against wear, pitting and scoring. AMSOIL SEVERE
GEAR® lubricants help prevent “thermal runaway” — a phenomenon
caused by a lubricant’s inability to control friction
and increased heat under high-stress conditions. By controlling
thermal runaway, AMSOIL SEVERE GEAR® Synthetic EP
Lubricants inhibit rapid lubricant degradation and component
damage. Equipment runs better and lasts longer with AMSOIL
SEVERE GEAR® Synthetic EP Lubricants.
Performance
AMSOIL SEVERE GEAR® provides performance beyond that
possible with conventional gear oil. These AMSOIL custom
products offer superior gear and bearing
protection, better friction and
heat reduction, increased efficiency
and extended service
life.
- Superior Film Strength
- Controls Thermal Runaway
- Rust and Corrosion protection
- Reduced Operating Temperatures
- Improved Efficiency
- Longer Oil, Seal, &
Equipment Life
Temperature
Extremes
AMSOIL SEVERE GEAR® EP lubricants excel in
hot and cold temperature extremes. By design,
they resist breakdown from high heat, preventing
acids and carbon/varnish formation. Their waxfree
construction also improves cold flow properties,
improving fuel economy and cold weather
shifting.
Applications
AMSOIL SEVERE GEAR® Synthetic EP Lubricants
are excellent for severe applications, such as
towing, hauling, steep hill driving, commercial use,
plowing, racing, off-road use, rapid acceleration,
frequent stop-and-go operation and high ambient
temperatures.
Higher horsepower, towing and hauling capabilities
of modern vehicles make turbo diesel
pick-ups, SUVs, vans and delivery/utility vehicles
especially prone to severe service. Other severe duty
vehicles include light, medium and heavy-duty
trucks, busses, heavy equipment, 4X4s, tow trucks,
race cars, tractors, and motorhomes.
For product service life in
differentials, consult your owners manual
or the Original Equipment Manufacturer (OEM)
to establish the application, NORMAL or SEVERE.
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NORMAL
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SEVERE
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| Cars, SUV, Light &
Medium Duty Trucks |
Drain at 100,000 miles
of service or according to the owners
manual, whichever is longer |
Drain at 50,000 miles of
service or according to the owners
manual, whichever is longer |
| Heavy Duty Class 8 Line
Haul |
Follow the
OEM drain interval (miles or hours) for
synthetic oil up to 250,000 miles or 3 years,
whichever comes first. Otherwise, drain
at twice the OEM interval for conventional
oil. |
| Heavy Duty Off-Road
Vocational |
Follow the
OEM drain interval (miles or hours) for
synthetic oil up to 120,000 miles or 1 year,
whichever comes first. Otherwise, drain
at twice the OEM interval for conventional
oil. |
For product service life in
non-differential applications, consult owners
manual or the OEM for either normal or severe
synthetic oil service intervals. Where service
intervals are unavailable, drain at twice the
interval for conventional oil.
Gear oils should be changed
more frequently when operating vehicles or equipment
in dusty or dirty conditions unless the gear
system is properly sealed and equipped with
membrane type breathers.
Note: AMSOIL does
not support extended drain intervals where water
contamination occurs. Check and service the
gear oil frequently when water contamination
is possible.
Use in differentials, manual
transmissions or other gear applications where
one or more of the following standards are specified:
API GL-5 & MT-1, MIL-PRF-2105E, Dana
SHAES 234 (Formerly Eaton PS-037) for 250,000
miles, Mack GO-J, Arvin/Meritor 0-76M (75W-140), plus hypoid gear
oil specifications from all domestic and foreign
manufacturers such as GM, Ford and Daimler Chrysler.
Can also be used in axles where API Service
GL-4 lubricant is recommended.
AMSOIL SEVERE GEAR
(75W-140) replaces competitors 75W-140,
80W-140 and and 85W-140 viscosity grades.
AMSOIL SEVERE GEAR
is compatible with conventional and synthetic
gear oils. Mixing AMSOIL gear oils with other
oils, however, will shorten the oil life expectancy
and reduce the performance benefits. AMSOIL
does not support extended drain intervals where
oils have been mixed.
Aftermarket oil additives, other
than those specified by AMSOIL, are not
recommended for use with AMSOIL gear
oils.
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TYPICAL
TECHNICAL PROPERTIES
revised as of 2/06
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AMSOIL
SEVERE GEAR Synthetic Extreme Pressure
(EP) SAE 75W-140 Lubricant
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| Kinematic Viscosity
@ 100°C, cSt (ASTM D-445) |
25.7
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| Kinematic Viscosity
@ 40°C, cst (ASTM D-445) |
185.6
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| Viscosity Index
(ASTM D-2270) |
173
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| Brookfield
Viscosity, cP (150,000 Max) @-40°C |
124,210
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| Flash Point,
°C (°F) (ASTM D-92) 150°C Min. |
210 (410)
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| Pour Point,
°C (°F) (ASTM D-97) |
-48 (-54)
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| Copper Corrosion
(ASTM D-130) 1b Max @ 121 °C (250°F)
/ 3hr |
1b
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| Falex Procedure
B (ASTM D-3233) (failure load, lbf.) |
1500
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| Foam Stability
(ASTM D-892) (20/50/20 maximum) |
0/0/0
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