Some differentials and gear boxes specify the use of 80W-90 EP (extreme pressure) gear oil. Oildepot.ca offers a premium synthetic upgrade in AMSOIL Severe Gear Synthetic 80W-90 Gear Oil. This gear lube delivers high load capacity, long service life and the ability to withstand both extreme cold and hot operating conditions. For applications requiring the API GL-5 specification and many others.
Package sizes include: 1-Quart Bottle (or buy case of 12) 1-Gallon Bottle (or buy case of 4) 5-Gallon Pail 16-Gallon Keg 30 or 55 – US Gallon DrumsLooking for prices? We can’t publish AMSOIL’s wholesale prices. Request a wholesale price list using the contact form on this page.
Features And Benefits Of AMSOIL Severe Gear 80W-90 Synthetic Gear Lube
- Lowers friction for optimized fuel mileage
- Steady wear protection
- Withstands extreme hot or cold operation
- Keeps seals pliable to prevent oil leaks
- Long life formula
Supreme Wear Protection
This synthetic 80W-90 gear oil is designed to prevent wear from every angle. AMSOIL starts with a shear-resistant base oil and then reinforces it with robust extreme pressure additives. AMSOIL 80W-90 Synthetic Gear Lube maintains its viscosity under the stress of extreme heat and heavy loads. It is resistant to thinning and shearing. Vital components are always protected, even during long periods of severe service.
Amazing Cold Weather Performance
AMSOIL Severe Gear 80W-90 Synthetic Gear Lube flows down to -42°C (-44°F), so equipment operates smoothly and receives instant oil flow. Efficiency and performance remain constant, regardless of the weather.
Keeps Seals Pliable
Don’t buy into the old wives tale that synthetic gear lubes can somehow cause oil leaks. Today’s synthetic gear oil technology from AMSOIL actually keeps seals pliable and supple far longer and more effectively than regular gear lubes. This keeps seals in tact and prevents leaks over the long term.
Applications for AMSOIL 80W-90 Synthetic Gear Lube
This product is ideal for differentials, transfer cases and gear boxes. Use where an 80W-90 gear lube meeting any of the specifications below are suggested.
- API GL-5
- MT-1
- MIL-PRF-2105E
- Dana SHAES 234
- Eaton PS-037
- Mack GO-J
Service Life Of AMSOIL 80W-90 Synthetic Gear Lube
Automotive Applications
Note: These service intervals do not apply in situations where water immersion occurs. Severe Gear 75W-85 must be changed frequently under these conditions.
Normal Service
Change at 100,000 miles (160,000 km) or the interval as prescribed by the OEM (whichever is longer).
Severe Service*
Change at 50,000 miles (80,000 km).
*Severe service can be described as racing, frequent towing, snow-plowing, hauling or frequently dusty conditions.
Heavy Duty Class 8 Truck
Follow the OEM service interval for synthetic gear oil (miles or hours) up to 250,000 miles (400,000 km) or three years (whichever comes first).
Vocational Trucks
Follow the OEM service interval for synthetic gear oil (miles or hours) up to 120,000 miles (193,000 km) or three years (whichever comes first).
Heavy Duty Off-Road
Follow the OEM service interval for synthetic gear oil (miles or hours) up to 100,000 miles (160,000 km) or two years (whichever comes first).
Limited Slip Differentials And AMSOIL 80W-90 Synthetic Gear Lube: Is a Friction Modifier Additive Needed?
While AMSOIL 80W-90 Synthetic Gear Lube does contain limited-slip additives, differential chatter can occasionally occur in some vehicles. As a precautionary measure, we recommend adding roughly two-thirds of a bottle of AMSOIL Slip-Lock Limited Slip additive or the counterpart OEM limited-slip differential additive.
Read more in our article: Does Friction Modifier Need to Be Added to AMSOIL Gear Lube in Limited-Slip Differentials?
Mixing AMSOIL 80W-90 Synthetic Gear Lube with Other Brands
AMSOIL 80W-90 Synthetic Gear Lube is compatible with all other brands of conventional, semi-synthetic and synthetic GL-5 gear oils. While you can safely mix AMSOIL 80W-90 Gear Lube with other brands, this will reduce the drain interval and performance capabilities of AMSOIL gear oil.
The use of any aftermarket oil additives (other than limited-slip friction modifiers) is definitely NOT recommended.
SpecificationsAMSOIL 80W-90 Synthetic Gear Lube |
SAE 80W-90 |
Kinematic Viscosity @ 100°C, cSt (ASTM D-445) |
15.5 |
Kinematic Viscosity @ 40°C, cSt (ASTM D-445) |
120.2 |
Viscosity Index (ASTM D-2270) |
135 |
Brookfield Viscosity, cP (150,000 Max) @-26°C |
46, 200 |
Flash Point °C (°F) (ASTM D 92) |
208(406) |
Pour Point °C (°F) (ASTM D 97) |
-42 (-43.6) |
Falex Procedure B (ASTM D-3233) (failure load, lbf.) |
2000 |
Foam Stability (ASTM D-892) (20/50/20 maximum) |
0/0/0 |