SAE 50 Long-Life Synthetic Transmission Oil (FTF)

For manual transmissions in heavy-duty trucks, semi-units and other equipment requiring an SAE 50 oil.

Advanced formula provides easier shifts and remarkable wear protection over 500,000 miles (800,000 km). Meets a multitude of heavy-duty transmission specifications.

Robust Formula Designed For 500,000 Mile (800,000 KM) Service Life in Over-the-Road Trucks

Q&A Article – SAE 50 Long-Life Syn Transmission Oil

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 drain intervals of up to 500,000 miles/five years. Compared to conventional fluids, Long-Life Synthetic Transmission Oil can help operators reduce maintenance costs and increase productivity.

Year-Round Performance

AMSOIL 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

AMSOIL 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.

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 Long-Life Synthetic Transmission Oil provided outstanding wear protection in all critical components. Examples include the input shaft main drive gear and output shaft bearing, 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. Long-Life Synthetic Transmission Oil contains foam inhibitors to ensure formation of a strong lubricating film and excellent wear protection.

Seal Friendly

Long-Life Synthetic Transmission Oil is compatible with seals to help prevent leaks and extend seal life.

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. It is recommended for applications specifying any of the following:

• Eaton PS-164 Rev. 7
• API GL-1 and MT-1
• Navistar/International TMS 6816
• Mack TO-A Plus
• Volvo I-Shift
• ZF Freedomline
• Meritor 0-81

Service Life

Follow the OEM drain interval for synthetic oil up to 500,000 miles or five years, whichever comes first.

Health & Safety

For recommendations on safe handling and use of this product, please refer to the Material Safety Data Sheet (MSDS). Please contact us for MSDS information. Keep Out of Reach of Children. Don’t pollute. Return used oil to collection centers.