Severe Gear 80W-90 Gear Lube A multi-functional Gear Lube excellent for Transaxles and older differentials. Can be used in GL4 applications where a GL5 is desired.
AMSOIL’s suggestion for transaxles calling for a GL4 or GL5. Recommended for Corvairs which share the gear lube in manual transmission and differential. A special GL5 which wont harm synchros in transmissions.
Editors Note: It’s basically the lower cost version of the best selling 75W-90. This is your best choice if your vehicles does call for a 90 (number on the right) but you are not pushing the vehicle beyond it’s normal limits and you are looking for the best fuel efficiency.
Download and print the Severe Gear Datasheet for individual viscosity information
Download PDFProduct Datasheet
Order online or call 605-274-2580 for additional savings.
Buy & PricingAMSOIL SEVERE GEAR 80W-90 Synthetic Extreme Pressure (EP) Gear Lube is a premium-grade gear oil specifically engineered for maximum performance in severe-duty applications. This state-of-the-art AMSOIL formulation features an exclusive blend of high-viscosity, shear-stable synthetic base oils and an extra treatment of high-performance additives. This line up features longer 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. This 80W-90 GL-5 prevents “thermal runaway” — a phenomenon caused by a lubricant’s inability to control friction and increased heat under high-stress conditions. By controlling thermal runaway, Severe Gear 80W-90 Gear Lube inhibits rapid lubricant degradation and component damage.
Simply put – your equipment runs better and lasts longer with AMSOIL SEVERE GEAR 80W-90.
Buy & Check Price& Bottle Sizes
AMSOIL SEVERE GEAR 80W-90 GL5 provides performance beyond that possible with conventional gear oil. This AMSOIL custom product offers superior gear and bearing protection, better friction and heat reduction, increased efficiency and extended service life. Thus the positive reviews.
AMSOIL SEVERE GEAR 80W-90 EP Gear Lube excels in hot and cold temperature extremes. By design, it resists breakdown from high heat, preventing acids and carbon/varnish formation. Gears don’t expand enough to cause further thermal increases and loss of power. Its wax-free construction also improves cold-flow properties, improving fuel economy and cold-weather shifting.
Some gear lubes fail to meet basic low-temperature requirements. Mobil 1 75W-140 Gear Oil, for example, failed to meet the requirements of the industry standards, AMSOIL’s 80W-90 is a smart buy delivering 20% more cold-temperature protection than the standard requires. It delivers better cold-temperature protection than Mobil 1 and Valvoline SynPower.
AMSOIL SEVERE GEAR 80W-90 provides superior performance and replaces competitors’ 80W-90 gear oils. It is formulated to exceed the requirements of front and rear
differentials, transfer cases, transaxles, manual transmissions, oil-lubricated wheel bearings and steering gear boxes.
Performance Features
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.
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 other GL-5 based specifications from vehicle manufacturers, including Ford*, GM* and Chrysler*. Can also be used in axles where an API GL-4 lubricant is recommended. Excellent in Corvair and Tempest Transaxles.
AMSOIL SEVERE GEAR® (80W-90) provides superior performance and replaces competitors’ 80W-90 gear oils. It is formulated to exceed the requirements of front and rear differentials, transfer cases, transaxles, manual transmissions, oil-lubricated wheel bearings and steering gear boxes.
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 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. For applications that require additional limited-slip friction modifier, add AMSOIL Slip Lock®.
AMSOIL PRODUCT WARRANTY
AMSOIL products are backed by a Limited Liability Warranty. For complete information visit www.amsoil.com/warranty.aspx.
HEALTH AND SAFETY
This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Safety Data Sheet (SDS). USA and Canada SDS are available upon request at 715-392-7101 or on the AMSOIL Website. Keep Out of Reach of Children. Don’t pollute. Return used oil to collection centers.
| AMSOIL has optimized gear lube performance for specific operating conditions. However, AMSOIL gear lubes are multi-functional and may be used in many different applications. This chart conveys the best AMSOIL recommendation based on product design and operating environment. |
AMSOIL PRODUCT WARRANTY
AMSOIL products are backed by a Limited Liability Warranty. For complete information visit www.amsoil.com/warranty.aspx.
