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.
AMSOIL Long-Life Synthetic
Transmission Oil’s high viscosity index
translates into better high- and low-temperature
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.
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.
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.
Long-Life Synthetic Transmission Oil is
compatible with seals to help prevent
leaks and extend seal life.
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
- Rockwell/Eaton/Fuller CD-50 (PS-081)
- Mack TO-A Plus
- ZF Freedomline
- Meritor 0-81
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), which
is available upon request through the AMSOIL sales office at
For AMSOIL Warranty information, visit www.amsoil.com/warranty.aspx.
|SAE 50 Long-Life Synthetic Transmission Oil (FTF)|
|Viscosity 100°C, cSt (ASTM D-445)|
|Viscosity 40°C, cSt (ASTM D-445)|
|Viscosity Index (ASTM D-2270)|
|Specific Gravity (g/ml)|
|Flash Point, °C (°F) (ASTM D-92)|
|Fire Point, °C (°F) (ASTM D-92)|
|Pour Point, °C (°F) (ASTM D-97)|
|Four-Ball Wear Test (ASTM D-4172)|
Para 1 (75°C, 1200 rpm, 40 kg, 1 hr)
|Brookfield Viscosity -40°C (cP)(ASTM D-2983)|
|Foam Tendency (ASTM D-892)|
0/0, 0/0, 0/0
|Copper Corrosion, 121°C, 3Hr (ASTM D-130)|
|60-Hour KRL (% Vk100 loss) (CEC L-45-A-99)|