AMSOIL SAE 50 Long-Life Synthetic Transmission Oil
Manual Transmission Fluid for Heavy-Duty Equipment
Specifically Engineered for 500,000-Mile Service Life
in Over-the-Road Commercial Trucks
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AMSOIL SAE 50 Long-Life Synthetic Transmission Oil is specially formulated to meet the demanding requirements of manual transmissions found in high-torque, heavy-duty line-haul trucks and other commercial applications. Its synthetic base stocks and premium additives help reduce gear and bearing wear (see photos), improve shifting and extend transmission life throughout oil drain intervals of up to 500,000 miles/five years. Compared to conventional fluids, AMSOIL SAE 50 Long-Life Synthetic Transmission Oil can help operators reduce maintenance costs and increase productivity.
- Better high- and low-temperature performance
- Reduces gear and bearing wear
- Extends transmission life
- Improves shifting
- Prevents transmission seal leaks and extends seal life
- Reduces maintenance costs
- 500,000 miles/5 year oil change interval
- Product Code/Price
- Product Details
- Shipping Info/Return Policy
| AMSOIL SAE 50 Long-Life Synthetic Transmission Oil | |
|---|---|
Product Code |
Pkg./Size |
| FTF05-EA | 5-Gallon Pail |
| FTF16-EA | 16-Gallon Keg |
| FTF55-EA | 55-Gallon Drum |
| FTF27-EA | 275-Gallon Tote |
| Wholesale prices available for retail and commercial accounts. Please call 1-877-331-4642 or e-mail info@superoilcentral.com for more information. |
|
Better High- and Low-Temperature Performance
AMSOIL SAE 50 Long-Life Synthetic Transmission Oil's high viscosity index translates into better high- and low-temperature performance compared to conventional fluids. In cold weather, it provides easier shifts and reduced fluid drag for increased fuel economy. Its exceptional thermal stability inhibits chemical breakdown and sludge formation at high operating temperatures to help transmissions run cleaner.
Resists Wear for Longer Transmission Life
AMSOIL SAE 50 Long-Life Synthetic Transmission Oil's synthetic base oils withstand the pressures of high-load, high-torque applications. As a result, it resists viscosity loss due to mechanical shear to provide a durable lubricating fluid film for increased wear resistance and longer transmission life.
Input Shaft Main Drive Gear and Output Shaft Bearing Inspection
To prove its effectiveness, AMSOIL installed SAE 50 Long-Life Synthetic Transmission Oil in line-haul trucks and placed them into real-world service. After 500,000 miles, a transmission was disassembled and inspected by a calibrated ASTM rater. Results reveal that AMSOIL SAE 50 Long-Life Synthetic Transmission Oil provided outstanding wear protection in all critical components. Examples include the input shaft main drive gear (photo left) and output shaft bearing (photo right), which both earned high merit scores of 8 out of a possible 10 for wear. In addition, both components showed no scuffing, spalling or corrosion, scoring perfect 10s in all areas.

Inhibits Foam
Churning gears introduce air into the fluid, causing foam. When bubbles between gear surfaces collapse, metal-to-metal contact and increased wear result. AMSOIL SAE 50 Long-Life Synthetic Transmission Oil contains foam inhibitors to ensure formation of a strong lubricating film and excellent wear protection.
Prevents Transmission Seal Leaks and Extends Seal Life
AMSOIL SAE 50 Long-Life Synthetic Transmission Oil is compatible with transmission seals to help prevent leaks and extend seal life.
Service Life
Follow the Original Equipment Manufacturer's (OEM) drain interval for synthetic oil up to 500,000 miles or five years, whichever comes first.
Applications
AMSOIL SAE 50 Long-Life Synthetic Transmission Oil is excellent for use in manual transmissions requiring an SAE 50 lubricant found in heavy-duty equipment.
Performance Requirements
AMSOIL Synthetic Manual Synchromesh Transmission Fluid meets or exceeds specific performance standards of various domestic and foreign manufacturers. Please visit the AMSOIL Corporate website for an up-to-date listing on AMSOIL SAE 50 Long-Life Synthetic Transmission Oil.
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