AMSOIL Severe Gear Synthetic Extreme Pressure (EP) Gear Lube is 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-90): provides superior performance and replaces competitors’ 75W-90 and 80W-90 gear oils. It delivers the best fuel efficiency and cold-temperature performance of the Severe Gear oils.
AMSOIL Severe Gear (75W-110): provides superior performance and replaces competitors’ 75W-110, 75W-90 and 80W-90 gear oils. It delivers better viscosity protection than Severe Gear 75W-90.
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.
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.
|Kinematic Viscosity @ 100ºC, cSt (ASTM D445)||15.9||20.9||26.1|
|Kinematic Viscosity @ 40ºC, cSt (ASTM D445)||102.4||139.9||177.7|
|Viscosity Index (ASTM D2270)||166||174||181|
|Brookfield Viscosity, cP @-40°C (ASTM D2983)||78,400||102,100||109,400|
|Flash Point ºC (ºF) (ASTM D92)||208 (406)||216 (421)||210 (410)|
|Pour Point ºC (ºF) (ASTM D97)||-43 (-45)||-44 (-47)||-43 (-45)|
|Copper Corrosion (ASTM D130)
@ 121 °C (250°F) / 3hr
|Falex Procedure B (ASTM D3233) (failure load, lbf.)||>3500||>3500||>3500|
|Foam Stability (ASTM D892)||0/0, 10/0, 0/0||0/0, 20/0, 0/0||0/0, 20/0, 0/0|