AMSOIL Synthetic Synchromesh Transmission FluidAn Upgrade for Great Shifting in Manual and Transaxle Transmissions

A manual transmission fluid designed to meet and exceed several manufacturer specifications including Honda MTF, GM, Chrysler and many more. Enjoy outstanding cold weather shifting performance. Delivers smooth operation and wear control over long intervals. Perfect for many GM, Chrysler, Honda & more.

AMSOIL Manual Synchromesh Transmission Fluid package sizes include:
1-Quart Bottle
1-Quart Bottles (case of 12)
5-Gallon Pail
55-Gallon Drum

AMSOIL Transmission Fluid Product Recommendation Guide


AMSOIL Manual Synchromesh Transmission Fluid meets or exceeds the following worldwide specifications. Consult our product look-up tool to see if this product is right for your car.

  • Honda MTF substitute for manual transaxles
  • GM 9985648, 9986105, 9985535
  • Dodge/Chrysler/Mopar MS-9224, MS-9417
  • New Venture NV T350, NV 1500, NV 2550, NV 3500, NV 3550, NV 5600
  • Land Rover, MG, Mini Cooper MTF-94
  • Tremec T4, T5, T18, T56, T176, TKO500, TKO600, TR 3450, TR 3550
  • Texaco MTX Syncromesh Transmission Fluid

Not suitable as a motor oil substitute or for motorcycles or transmissions with wet clutches.

General Motors and Dodge/Chrysler Part Numbers

  • GM 12345349 or 12345577, 12377916, 1052931
  • Dodge/Chrysler/Mopar 4874464, 4874465

Features and Benefits of AMSOIL Manual Synchromesh Transmission Fluid

  • Lowers friction for improved shifting performance over factory-installed fluid
  • Designed for high film strength and maximum wear control
  • Offers consistent performance in extreme heat or cold
  • Resists deposit formation
  • Maximizes fuel economy
  • Conditions seals for leak prevention
  • Compatible with brass parts
  • Inhibits rust and corrosion
  • Priced lower than many OEM replacement transmission fluids

Extreme Temperature Performance

With a -46C pour point, AMSOIL Synthetic MTF eases shifting in frigid weather. In extreme heat and under heavy loads, this Manual Synchromesh gear lube maintains a constant viscosity and offers impenetrable film strength. Enjoy steady transmission performance and protection all year round.

Service Life for AMSOIL MTF

Suitable for the longest interval as recommended by the auto manufacturer to a maximum of 150,000 miles (240,000 km). If no oil change schedule is offered, change at 50,000 miles (80,000 km).


Synthetic Synchromesh Transmission Fluid 5W-30 (MTF)

Kinematic Viscosity @ 100°C, cSt (ASTM D-445)


Kinematic Viscosity @ 40°C, cSt (ASTM D-445)


Viscosity Index (ASTM D-2270)


Flash Point, °C (°F) (ASTM D-92) 150°C Min.

218 (424)

Pour Point, °C (°F) (ASTM D-97)

-46 (-51)

4-Ball Wear 75°C, 1200 rpm, 40kg, 1 hr.


Brookfield Viscosity @ -40°C


Foam Stability (ASTM D-892) (20/50/20)


Copper Corrosion (3 hr, 121°C) (ASTM D-130)


A premium synthetic upgrade over factory installed transaxle manual transmission fluids. Suitable for many GM, Dodge, Honda and more.
Manufacturer: AMSOIL
Model: Synthetic Manual Synchromesh Transmission Fluid
Product ID: MTF