C6 1977 ATF
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Tuned
Joined: Apr 2013
Posts: 498
Likes: 53
From: Sweden
I tried but it was almost impossible for me to analyse all answers. I found a lot of different opinions, even answers
like " I have always used Type F in all my aut transmissions without any problems".
That's why I would appreciate some direct answers here. Thanks!
like " I have always used Type F in all my aut transmissions without any problems".
That's why I would appreciate some direct answers here. Thanks!
Fleet Mechanic
Joined: Sep 2014
Posts: 1,626
Likes: 78
From: NE Texas
In general, I would suggest that if you see someone contradicting all the rest of the answers with "I've done that for years, no problems" - who are you going to believe, Ford engineers or someone you know nothing about? Me, I figure using stuff compatible with factory specs has kept my truck alive 40 years. Use the Dexron. I think anything compatible with Dexron III is compatible with II. But, I'm just another anonymous guy on the internet!
Lead Driver
Joined: Nov 2000
Posts: 6,628
Likes: 345
From: Albuquerque
Type "F" will typically give you firmer shift. "I've used it for years" in C6 trannys and power steering systems
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Fleet Owner
Joined: Jan 2004
Posts: 26,007
Likes: 575
From: Brentwood,CA
Being that the C6 was never upgraded with better clutches Type F is generally the better fluid. FYI Mercon was phased out a long time ago so don't accidentally put the wrong fluid in. Most bottles say not for use in applications requiring Type F and this warning extends to the C6 also. You can still readily get Type F.
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