Specifically engineered for extended drain intervals up to 500,000 miles as set by equipment manufacturers for over-the-road trucks and heavy equipment. Provides long life in passenger cars and trucks. Protects against wear and improves equipment life. Excellent "All Season" summer and winter performance. Outperforms all conventional gear oils. Compatible with most limited-slip differentials.
Package sizes include:
5-Gallon Pail
16-Gallon Keg
30-Gallon Drum
55-Gallon Drum
AMSOIL Long Life Synthetic Gear Lubes are extended drain gear lubes engineered specifically to last several times longer and protect gears better than all conventional gear oils. These exclusive AMSOIL formulations of premium synthetic base oils and high performance additives resist acid, carbon and varnish formation from oxidative breakdown. Components run cleaner and last longer. AMSOIL Long Life Synthetic Gear Lubes are shear stable and friction reducing. They maintain their viscosity during extended service for maximum wear control and they are fuel-efficient. The superior cold temperature fluidity and high temperature stability properties of AMSOIL Long Life Synthetic Gear Lubes make them excellent for all-season use. Equipment lasts longer and maintenance costs are reduced with AMSOIL Long Life Synthetic Gear Lubes.
• High Load Gear and Bearing Protection
• Reduced Operating Temperatures
• Rust and Corrosion Protection
• Better Cold Weather Shifting
• Improved Efficiency
• Improved Seal Life
This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Material Safety Data Sheet (MSDS).
Click here to view the MSDS Data Sheet for AMSOIL FGO.
Keep out of the reach of children. Don't pollute. Return used oil to collection centers.
| TYPICAL TECHNICAL PROPERTIES | |
| AMSOIL Long Life Synthetic Gear Lube 80W-140 (FGO) | |
| Kinematic Viscosity @ 100°C, cSt (ASTM D-445) | 26.4 |
| Kinematic Viscosity @ 40°C, cst (ASTM D-445) | 257.6 |
| Viscosity Index (ASTM D-2270) | 133 |
| Brookfield Viscosity, cP (150,000 Max) | 59,926 @ -26°C |
| Flash Point, °C (°F) (ASTM D-92) 150°C Min. | 218 (424) |
| Pour Point, °C (°F) (ASTM D-97) | -40 (-40) |
| Copper Corrosion (ASTM D-130) 1b Max @ 121 °C (250°F) / 3hr | 1b |
| Falex Procedure B (ASTM D-3233) (failure load, lbf.) | 1500 |
| Foam Stability (ASTM D-892) (20/50/20 maximum) | 0/0/0 |
| NORMAL | SEVERE | |
| Cars, SUV, 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 500,000 miles or three years, whichever comes first. Otherwise, drain at twice the OEM interval for petroleum oil. | |
| Heavy Duty Off-Road Vocational | Follow the OEM drain interval (miles or hours) for synthetic oil up to 120,000 miles or one year, whichever comes first. Otherwise, drain at twice the OEM interval for petroleum oil. | |
Differential & Transfercase can get destroyed if neglected. This tip can help avoid expensive repairs.
Product Name: 80W-140 Semi-Truck Gear Lube (FGO)
Current Rating: 5out of 5 stars
Votes & Reviews: 3 vote(s) and 8 user reviews.
Reviewed by Joe: 
Seems like a great product
Reviewed by Dave:
I have used this product in commercial outdrives for over 10 years. Good life and no broken gears in all those years
Reviewed by 1blkc5:
Used it in the rear end of My toyota tacoma seems great can't beat the price compared to severe gear lube .
Reviewed by Wildman:
I replaced the OEM oil in the manual transmission on a 2014 Subaru Outback at about 60K miles. In the cold weather it was difficult shifting from neutral to first and first to second gears when cold. Shifting improved when the temperature increased after driving several miles. Therefore, I cannot recommend this lubricant for the stated application.
Reviewed by bacholiver:
Has always served me well in all my vehicles, whether its the engine, (gas and diesel) Transmission, or differential. I have lived in Florida and in Minnesota and have always had the flow needed to keep things lubed.
Reviewed by Stan the Man:
I put this in the rear ends on my Kenworth, so far so good!
Reviewed by Stan the Man:
I put this in the rear ends on my Kenworth, so far so good!
Canada
United States
Will buy more .
Product speaks for its self