Amsoil Long-Life Synthetic Transmission Oil SAE 50 (FTF)

Amsoil Long-Life Synthetic Transmission Oil SAE 50 (FTF)
Data Bulletin ▼

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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, improve shifting and extend transmission life throughout drain intervals of up to 500,000 miles/five years.

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 oils and premium additives help reduce 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.

Package Sizes (FTF)

Code Sizes Units
FTF1G (FTF1G-EA) 1-Gallon Each
FTF1G (FTF1G-CA) 1-Gallon Case of 4
FTF05 (FTF05-EA) 5-Gallon Pail Each
FTF16 (FTF16-EA) 16-Gallon Keg Each
FTF55 (FTF55-EA) 55-Gallon Drum Each
FTF27 (FTF27-EA) 275-Gallon Tote Each

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 more than 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 (see images).

Mainshaft Gear
Mainshaft Gear
Output Seal
Output Seal
Synchro
Synchro
The transmission gears and synchro friction material demonstrated minimal wear following 500,000 miles, while the output seal did not leak and still contained 100% of its grease, proving the lubricant’s superior performance.

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.

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
  • ZF* Freedomline
  • Meritor* 0-81
  • Rockwell*/Eaton/Fuller* CD-50 (PS-081)

Service Life

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

Amsoil Product Warranty

Amsoil products are backed by a Limited Liability Warranty. For complete information visit www.amsoil.com/warranty.aspx.

TYPICAL TECHNICAL PROPERTIES
Amsoil Long-Life Synthetic Transmission Oil SAE 50 (FTF)
Kinematic Viscosity @ 100˚C, cSt (ASTM D445) 17.5
Kinematic Viscosity @ 40˚C, cSt (ASTM D445) 135.2
Viscosity Index (ASTM D2270) 142
Specific Gravity (g/ml) (ASTM D1298) 0.8602
Density, (lb/gal) (ASTM D1298) 7.16
Color (ASTM D1500) 142
Pour Point ˚C (˚F) (ASTM D97) -42 (-44)
Fire Point ˚C (˚F) (ASTM D97) 226 (489)
Flash Point ˚C (˚F) (ASTM D92) 226 (439)
Four-Ball Wear Test (ASTM D4172B @ 40 kg, 75˚C, 1200 rpm, 1hr), Scar, mm 0.38
Brookfield Viscosity @ -40˚C, cP (ASTM D2983) 117,483
Foam Stability (ASTM D892) 0/0, 0/0, 0/0
Copper Corrosion 3 hr, 121˚C (ASTM D130) 1B
Viscosity CCS, cP @ ˚C (ASTM D5293) 4270 (-30)
NOACK Volatility, % weight loss (g/100g) (ASTM D5800) 6.6
60-Hour KRL (% Vk100 loss) (CEC L-45-A-99) -4.97

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