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Best ATF for C6?

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Best ATF for C6?

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Old

Apr 27, 2014 | 07:06 PM

#1

For-dragon

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Best ATF for C6?

Likely obvious to most, but...

I've read several transmission fluid bottles now that say "not recommended for Ford F type transmissions." Is this as in "F"-100, FE, or as a C6 is it safe unless it's an F6 (which I doubt exists)?

What's the best fluid to use with a C6 as those bottles likely aren't it?

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Old

Apr 27, 2014 | 07:17 PM

#2

JWC 3

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From: Tennessee

My 78 c6 uses Mercron . Older units use Type F fluid . I think 77 was the switch over , I MAY be wrong though . Your dipstick may be marked with fluid type to use .

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Old

Apr 27, 2014 | 07:18 PM

#3

NumberDummy

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From: Simi Valley, CA

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1966/76 C6: Type F ATF

1977/97 C6: Mercon aka Dextron II

Pic from 1973/79 Ford car parts catalog, final printing 11/88.

Attached Images

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Old

Apr 27, 2014 | 07:19 PM

#4

JWC 3

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Joined: Dec 2012

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From: Tennessee

Quote:

Originally Posted by NumberDummy

1966/76 C6: Type F ATF

1977/97 C6: Mercon aka Dextron II

Looks like I was correct !

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Old

Apr 27, 2014 | 08:33 PM

#5

For-dragon

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Well done and thanks to you both.

Since it's a non-stock (year wise) engine, I'm assuming the tranny is from the donor. Is there a number stamp, etc. on it that will help me determine year?

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