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Topic: Only a fast question... (Read 1377 times) previous topic - next topic

Only a fast question...

So much time i needed help about the auto trans (C5).
 The correct type of fluid for this tranny was DEXRON II - III or Mercon , right ? Yesterday i nearly bought Type F Fluid......

And it´s 11 pints (5.2 L) ......oh yes

1985 Mercury Cougar V6
1989 F-200 V8
1996 Explorer V6
2001 F-150

Re: Only a fast question...

Reply #1
Yes, the correct fluid for a C5 is Dexron II/III. The dipstick says "Type "H", but Type H is just Dexron (or at least Dexron meets Type H specs). Don't put type F in it unless you want to chirp the tires with every gear change until the tranny fails. Some people will add a quart or two of Type F for a firmer shift feel, but don't do a whole fluid change with it.
2015 Mustang GT Premium - 5.0, 6-speed, Guard Green - too much awesome for one car

1988 5.0 Thunderbird :birdsmily: SOLD SEPT 11 2010: TC front clip/hood ♣ Body & paint completed Oct 2007 ♣ 3.55 TC rear end and front brakes ♣ TC interior ♣ CHE rear control arms (adjustable lowers) ♣ 2001 Bullitt springs ♣ Energy suspension poly busings ♣ Kenne Brown subframe connectors ♣ CWE engine mounts ♣ Thundercat sequential turn signals ♣ Explorer overhead console (temp/compass display) ♣ 2.25" off-road dual exhaust ♣ T-5 transmission swap completed Jan 2009 ♣

Re: Only a fast question...

Reply #2
I've had only F in my Bird's AOD since '99 and have been using it the wifes Grand Marquis since early '98, but not everyone should necessarly do same as me..

The reason it's in the Bird is I race it and will firm up the shifts a little(but nothing drastic, the Trans Go shift kit made 10 times more difference). The Grand Marquis tranny started slipping on the 1-2 shift at 33K mi. With the F(still slipped) and a B&M electronic shift improver, it just crossed 100K mi last week and still works fine...

Re: Only a fast question...

Reply #3
I wonder if I should throw a lil' F into my '86's AOD.. the 1-2 shift is very.. err.. leisurely.