Dexron 6 trans fluid

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Nov 30, 2008 | 03:56 PM

RGV10SD

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Dexron 6 trans fluid

I'm getting ready to change the transmission and transfer case fluid in my '02 F250, and I know that the owners manual recommends mercon/dexron trans fluid. My question is, can the new dexron 6 be used in my vehicle? They say that it is reverse compatable. I work at a GM dealership, and we use dex 6 in everything. I even used it in my 97 Lumina with 185,000 miles on it with no problems....Yet....

Nov 30, 2008 | 05:33 PM

ReAX

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From: Central Florida

As long as the Dexron is Mercon compatible, it should work. The big thing would be making sure Dexron meets the criteria of the Mercon/Mercon V fluids.

Nov 30, 2008 | 05:51 PM

projectSHO89

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From: St Louis

Mercon V and Dexron are not interchangeable although Dex III was interchangeable with basic Mercon.

You'd have to pull the specs of each fluid. My guess is that Dex 6 is NOT a substitute for Merc V.

Steve

Nov 30, 2008 | 06:26 PM

FTE Ken

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From: Enjoying the real world.

Merc V is compatible with... only Merc V. Don't put in the GM stuff.

Dec 1, 2008 | 07:17 PM

Smithcts

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Dex 6 is very aggressive with rubber components. Unless your tranny is approved for Dex 6, best to stay away.

Charlie

Dec 1, 2008 | 09:07 PM

ferret2

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From: House Springs, MO

Just an FYI. I just finished changing my ATF with Mobil 1 Synthetic. It lists being compatible with, among others, Dexron 6, Mercon, Mercon 5, Mercon LV. So is what many of of us have been using for years still OK?