
- Advanced protection against wear.
- Controls thermal runaway.
- Protects against rust and corrosion.
- Helps reduce operating temperatures.
- Maximum efficiency.
- Long oil, seal and equipment life.
- Flexible Easy-Pack for clean, fast installation.
Performance
AMSOIL SEVERE GEAR provides performance far beyond what is possible with conventional gear oil. We designed SEVERE GEAR to deliver superior gear and bearing protection, better friction and heat reduction, increased efficiency and extended service life.
Temperature Extremes
SEVERE GEAR excels in hot and cold temperature extremes. By design, it resists breakdown from high heat, preventing acid and carbon/varnish formation. Its wax-free construction also improves cold-flow properties, improving fuel economy and cold-weather shifting.
APPLICATIONS
AMSOIL SEVERE GEAR 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 pickups, 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.
- Advanced protection against wear.
- Controls thermal runaway.
- Protects against rust and corrosion.
- Helps reduce operating temperatures.
- Maximum efficiency.
- Long oil, seal and equipment life.
- Flexible Easy-Pack for clean, fast installation.
Use in differentials, manual transmissions and other gear applications requiring any of the following specifications:
API GL-5/MT-1, MIL-PRF 2105E, SAE J2360, Ford XY-75W85-QL, GM 19300457, 19418501, 92184900, 19369842, Ram 68210057AB, 68083381AA, 68364258AA, 68232947AB, 68378949AA, 05136035AC, Toyota Genuine Gear Oil LT, 08885-02506.
SERVICE 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.
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.
COMPATIBILITY
AMSOIL SEVERE GEAR is compatible with conventional and synthetic gear oils. Mixing AMSOIL gear oil with other oils, however, will shorten the oil life expectancy and reduce its 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. For applications that require additional limited-slip friction modifier, add AMSOIL Slip Lock®.
TYPICAL TECHNICAL PROPERTIES





