Product Description
AMSOIL Severe Gear Synthetic Extreme Pressure Gear Lube is a premium-grade gear oil specifically
engineered for maximum performance in severe duty applications. This AMSOIL formulation features an
exclusive blend of high viscosity, shear stable synthetic base oils and an extra treatment of
high-performance additives. AMSOIL Severe Gear Synthetic EP Gear Lube maintains its 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 helps 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 Gear Lube inhibits rapid lubricant
degradation and component damage. Equipment runs better and lasts longer with AMSOIL Severe Gear
Synthetic EP Gear Lube.
Performance
Severe Gear provides performance beyond that possible with conventional gear oil. This custom
product offers superior gear and bearing protection, better friction and heat reduction, increased
efficiency and extended service life.
Temperature Extremes
Severe Gear EP Gear Lube excels in hot and cold temperature extremes. By design, it resists
breakdown from high heat, preventing acids and carbon/varnish formation. Its wax-free construction
also improves cold-flow properties, improving fuel economy and cold weather shifting.
Applications
AMSOIL Severe Gear Synthetic EP Gear Lube is 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, buses, heavy equipment, 4X4s, tow trucks, race cars, tractors, and motor
homes.
- Superior Film Strength
- Controls Thermal Runaway
- Rust and Corrosion protection
- Reduced Operating Temperatures
- Improved Efficiency
- Longer Oil, Seal, & Equipment Life
For product service life in differentials, consult your owner’s manual or the Original Equipment
Manufacturer (OEM) to establish the application, NORMAL or SEVERE.
. |
Normal Service
|
Severe Service
|
Cars, SUVs, Light 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 three years, whichever comes
first. |
Vocational/Delivery |
Follow the OEM drain interval (miles or hours) for
synthetic oil up to 120,000 miles or three years, whichever comes
first. |
Heavy Duty Off-Road |
Follow the OEM drain interval (miles or hours) for
synthetic oil up to 100,000 miles or two years, whichever comes
first. |
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.
Recommended for use in differentials, manual transmissions and other gear
applications requiring any of the following specifications: API GL-5, MT-1, MIL-PRF-2105E, Dana
SHAES 234 (Formerly Eaton PS-037), Mack GO-J, or the differential (hypoid) gear oil specifications
from all domestic and foreign manufacturers such as GM, Ford and Daimler Chrysler. Can also be used
in axles where an API GL-4 lubricant is recommended.
AMSOIL SEVERE GEAR® (75W-140) provides superior performance and
replaces competitors’ 75W-140, 80W- 140 and 85W-140 gear oils. Use where these viscosities are
required by OEMs and where maximum viscosity protection is needed for extreme severe-duty
applications.
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 oil.
AMSOIL Severe Gear is compatible with most limited-slip differentials. If
limited-slip differential chatter occurs, add AMSOIL Slip-Lock™ friction modifier additive.
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.
TYPICAL TECHNICAL PROPERTIES
|
AMSOIL SEVERE GEAR® Synthetic Extreme Pressure (EP)
Lubricant SAE 75W-140 (SVO)
|
Kinematic Viscosity @ 100°C, cSt (ASTM D
445) |
27.5
|
Kinematic Viscosity @ 40°C, cst (ASTM D 445) |
193.2
|
Viscosity Index (ASTM D 2270) |
180
|
Brookfield Viscosity, cP @-40°C |
129,000
|
Flash Point, °C (°F) (ASTM D 92) |
210 (410)
|
Pour Point, °C (°F) (ASTM D 97) |
-46 (-51)
|
Copper Corrosion (ASTM D 130) 1b Max @ 121 °C (250°F) /
3hr |
1b
|
Falex Procedure B (ASTM D 3233) (failure load,
lbf.) |
>3500
|
Foam Stability (ASTM D 892) |
0/0/0
|
|