I work in a Lube Shop and yet I don't know what the difference is between the different types of tranny fluids. I know that Type F is for Ford and Dex-Mer III is for GM and others, but what is the difference between the fluid itself?

Just something I have been wondering.

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1984 Trans Am Coupe
700-R4 Tranny
Mods:
K&N
Rebuilt carb
Rebuilt heads
3" Mandrel Exhaust
Hooker Headers
Lunati Cam
1" Lowering Springs
Clarion CD
Kicker Speakers
2 MTX 4000
Pearl White Paint

"Live It To The Last"

 

wrong....type F is for early 80 fords and previous....most newer fords use dexron mercon also....most GM use dex too
chrysler, dodger etc use +3 atf. i think it is a superior lube...as it costs on average 1-2 dollars more than dex and F

 

Ford made type F because they screwed up on their engineering and made mushy shifting trans. back then.