Automatic Transmission Fluid?

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Sep 9, 2011 | 02:23 PM

LeanPocket

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From: Corpus Christi Texas

Automatic Transmission Fluid?

I'm going to put in new ATF this weekend, what should I purchase? Obviously I want the good stuff, so what do you all use?

thx

Sep 9, 2011 | 02:45 PM

parks450

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From: Wyoming

I use mobil 1 synthetic. But have used castrol before in other vehicles, both have had 0 problems

Sep 9, 2011 | 02:50 PM

SOMbitch

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My trans builder told me to only run Dex III. IIRC Yank also recommends Dex III with their convertors..... I think the synth stuff works well with the newer trannys designed for it but would stay away with the old 60E

Keep in mind Dex IV is a synth.

Sep 9, 2011 | 03:11 PM

LeanPocket

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From: Corpus Christi Texas

Mobil 1 aye? any luck with the RP fluids?

Sep 9, 2011 | 03:34 PM

RPM WS6

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From: Schiller Park, ILL Member: #317

I would skip the Mobil 1 (synthetic). Like said above, DexIII is the way I would go, brand really doesn't matter.

Sep 10, 2011 | 11:00 AM

pancho toco loco

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From: NJ

I've always used MOPAR ATF +4. Its what my friend ( trans builder ) recommends and used at the time of the rebuild back in 03.

Sep 10, 2011 | 11:18 AM

forcd ind

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From: woodbine, md

i use dex 3 NAPA in my 4l80e

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Sep 10, 2011 | 03:20 PM

lt1-xjs

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From: centerville, ohio

Quote:

Originally Posted by RPM WS6

I would skip the Mobil 1 (synthetic). Like said above, DexIII is the way I would go, brand really doesn't matter.

I installed my Yank over 6 years ago with Mobil 1, still the original 18 yr old trans. Yank approves Dexron VI the replacement for Dex III and it's a full synthetic.