Quote:
Manual Transmission Fluids (MTL) Fluids containing MTL Application Specific Additive Packages with GL-4 Ratings
Choosing a Manual Transmission fluid can be confusing.
Many times there is simply a specification referenced and no information about the viscosity of a fluid at 100C, where the oil viscosity is documented at the higher testing temperature.
What I recommend you do when looking for a replacement fluid is to determine the viscosity of the fluid at 100C either from the manufacturer's Product Data Sheet or from a New oil Analysis or VOA.
After knowing the viscosity at 100C (212F), one can then attempt to match up the fluid to one or more of those below:
A. The four MTL fluids closest to a Kinematic Viscosity of 6.1 (About the same viscosity as a DexronVI) or so are:
1. Castrol Syntrans FE 75W,
2. BMW (Pentosin) MTF-LT-3,
3. Honda MTII or MTF 2.
4. Ford FML-XT-11-QDC
B. The next higher viscosity MTL would be the 7.5 cSt versions (About the same viscosity as a DexronIII)
1. Royal Purple's Synchromax
2. Ravenol MTF-2
3. Honda MTF
4. VW part number G052512A2
5. GM Manual Transmission and Transfer Case Fluid
6. BMW (Pentosin) MTF-LT-1, 2
C. The next higher viscosity MTL would be Castrol Syntrans V FE 75W-80 8.0cSt
D. The next higher viscosity MTL would be BG Synchroshift II 8.2 cSt
E. The next higher viscosity is Mopar Type MS-9417 MTL 9.0cSt
F. The next higher viscosity MTL would be Pennzoil Synchromesh 9.3 cSt
G. The next group of MTL’s are in the 10.x cSt range are:
1. Redline MTL 70W80.
2. Amsoil MTL
3. GM Synchromeshs’
4. Volvo MTF 645
5. Ford Motor Craft XT-M5-QS
H. The next higher viscosity MTL would be:
1. Redline MT-85 – 12.0 cSt
I. The next higher viscosity MTLs would be:
1. Amsoil MTG 14.5 cSt
2. Redline MT-90 15.6 cSt
3. Castrol Syntrans Multivehicle 75W-90
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Manual Transmission Fluids
Again, fixating on a particular base oil or additive component tells us nothing about the performance of the totality of the finished product.
I had this list as a post in this forum but someone removed it.