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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 owner’s 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 owner's
manual, whichever is longer |
Drain at 50,000 miles of
service or according to the owner's
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 owner's
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 0-76N (75W-90)
& 0-76M (75W-140), plus hypoid gear
oil specifications from all foreign and domestic
manufacturers such as GM, Ford and Daimler Chrysler.
Can also be used in rear axles where API Service
GL-4 lubricant is recommended.
AMSOIL SEVERE GEAR
(75W-90) replaces competitors' 75W-90
and 80W-90 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
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AMSOIL
SEVERE GEAR Synthetic Extreme Pressure
(EP) SAE 75W-90 Lubricant
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| Kinematic Viscosity
@ 100'C, cSt (ASTM D-445) |
16.6
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| Kinematic Viscosity
@ 40'C, cst (ASTM D-445) |
115.0
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| Viscosity Index
(ASTM D-2270) |
156
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| Brookfield
Viscosity, cP (150,000 Max) @-40'C |
87,462
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| Flash Point,
'C ('F) (ASTM D-92) 150'C Min. |
218 (424)
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| Pour Point,
'C ('F) (ASTM D-97) |
-51 (-60)
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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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