Manual Transmission Fluid for Heavy-Duty Equipment
Specifically Engineered for 500,000-Mile Service Life in Over-the-Road Trucks
AMSOIL Long-Life Full Synthetic SAE 50 Transmission Oil (Product Code: FTF) 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 in Product Details section below), improve shifting and extend the life of manual transmissions throughout oil drain intervals of up to 500,000 miles or five years. Compared to conventional fluids, AMSOIL Long-Life Synthetic SAE 50 Transmission Oil can help operators reduce maintenance costs and increase productivity.
- Better high- and low-temperature performance
- Reduces gear and bearing wear
- Extends the life of manual transmissions
- Improves shifting
- Prevents transmission seal leaks and extends seal life
- Reduces maintenance costs
- 500,000 miles/5 year oil change interval
Diesel Fleet Fuel Economy Study (475.6 kb)
AMSOIL Long-Life Full Synthetic SAE 50 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
Better High- and Low-Temperature Performance
AMSOIL Long-Life Full Synthetic SAE 50 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 Long-Life Synthetic SAE 50 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 Long-Life Synthetic SAE 50 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 Manual Transmission Oil provided outstanding wear protection in all critical components. Examples include the input shaft main drive gear and output shaft bearing (photos below), 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.
Transmission Inspection after 500,000 Miles Using AMSOIL Long-Life Synthetic SAE 50 Transmission Oil
Churning gears introduce air into the fluid, causing foam. When bubbles between gear surfaces collapse, metal-to-metal contact and increased wear result. AMSOIL Long-Life Synthetic SAE 50 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 Long-Life Synthetic SAE 50 Transmission Oil is compatible with transmission seals to help prevent leaks and extend seal life.
Follow the Original Equipment Manufacturer’s (OEM) drain interval for synthetic oil up to 500,000 miles or five years, whichever comes first.
AMSOIL Long-Life Synthetic SAE 50 Manual Transmission Oil (FTF) 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:
- API GL-1 and MT-1
- Eaton PS-164 Rev. 7
- Navistar/International TMS 6816
- Rockwell/Eaton/Fuller CD-50 (PS-081)
- Mack TO-A Plus
- ZF Freedomline
- Meritor 0-81
Shipping for Online and Catalog Customers
Online and catalog customers receive FREE standard ground shipping on orders of $100 or more when shipped to a valid address in the continental United States, including APO and FPO military post boxes. AMSOIL does not ship to PO Boxes. The $100 minimum does not include taxes, fees or other charges. For online and catalog retail orders totaling less than $100, a flat shipping rate of $8.50 will apply in the continental U.S.
Please Note: AMSOIL Dealers and Preferred Customers are not eligible for free shipping. Orders containing only clothing and promotional materials totaling less than $20 are subject to $5 shipping and handling.
For more information, please visit the AMSOIL, Inc. website: AMSOIL Shipping, Sales Tax and Product Return Guidelines
Please visit the AMSOIL, Inc. website: AMSOIL Shipping, Sales Tax and Product Return Guidelines