The Best Synthetic Gear Oil
Synthetic Gear Oil Improves Gas Mileage and Performance
How to Improve Gas Mileage and Performance Step 7
Synthetic Extreme Pressure Gear Oil
- Improves gas mileage and diesel fuel economy
- Superior protection against friction and wear
- Excellent for high horsepower, hauling and towing
- Better cold weather performance
- Lasts up to 100,000 miles
Formulated for the severe operating conditions of today's pickup trucks, SUVs, sports cars, heavy equipment and other hard working vehicles. Reduces friction and wear to improve gas mileage and diesel fuel economy. Excellent for severe applications, such as towing, hauling, steep hill driving, commercial use, racing, off-road use, rapid acceleration, frequent stop-and-go operation and high temperatures.
Cost Effective
These superior synthetic gear oils cost a few dollars more but last 2 to 3 times longer and can save you 50% on maintenance. And you can add the savings from better gas mileage on top of that. You get maximum performance, improved fuel economy and lower maintenance costs.
AMSOIL SEVERE GEAR 75W140 replaces 75W140, 80W140 and and 85W140 viscosity grades.
AMSOIL SEVERE GEAR 75W90 replaces 75W90 and 80W90.
AMSOIL SEVERE GEAR Synthetic Extreme Pressure (EP) Lubricants are premium grade lubricants specifically engineered for maximum performance and fuel economy 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.
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 GOJ, Arvin / Meritor 0-76M (75W-140), plus hypoid gear oil specifications from all domestic and foreign manufacturers such as GM, Ford and Daimler Chrysler. Can also be used in axles where API Service GL4 lubricant is recommended.
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 SERVICE
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SEVERE SERVICE
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Cars, SUVs, Light & Medium Duty Trucks
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Drain at 100,000 miles of service or according to the owner's manual, whichever is longer
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Drain at 50,000 miles of service or according to the owner's manual, whichever is longer
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Heavy Duty Class 8 Line Haul
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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.
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Heavy Duty Off-Road Vocational
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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.
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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. AMSOIL SEVERE GEAR is compatible with most limited slip differentials. If limited slip differential chatter occurs, add AMSOIL Slip-Lock friction modifier additive(see below).
- API GL5 & MT1
- MIL-PRF-2105E
- Dana SHAES 234 (Formerly Eaton PS-037 ) for 250,000 miles
- Dana SHAES 256 (Formerly Eaton PS-163 ) for 500,000 miles
- MACK GOJ & GOJ+,
- Hypoid gear oil specifications from all foreign and domestic manufacturers
- Can also be used in rear axles where API Service GL-4 lubricant is recommended.
Slip Lock Differential Additive
In some differential applications, a friction modifier additive is necessary to reduce chatter. AMSOIL Slip-Lock Differential Additive is formulated with advanced friction modifiers and is designed to eliminate gear-housing chatter in cars, trucks and SUVs equipped with limited-slip, positraction, and locking differentials. It also reduces the banging and clunking associated with automatic locking differentials.
AMSOIL Slip-Lock Differential Additive is formulated for use with both synthetic and petroleum gear lubricants and safely replaces manufacturer recommended friction modifiers. Its convenient flip-top dispenser provides quick and easy application to the gear housing. One four-ounce bottle of Slip-Lock treats differential capacities of two to four quarts. It is not for use in automatic transmissions or other applications requiring ATF.
NOTE: AMSOIL Synthetic Gear Lubes do not require the use of this additive. However, not all differentials respond the same and if chatter is noticed, the addition of AMSOIL Slip-Lock will eliminate it. For chattering differentials not running AMSOIL Gear Lube, this product is an excellent solution to the problem.
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