Forum Discussion

Mickeyfan0805's avatar
Mickeyfan0805
Explorer
Jul 22, 2013

Adding ATF when you don't know what's in there

We had our transmission fluid flushed and replaced last spring and, being the non-mechanical idiot that I am, I didn't ask for detail as to what they filled it with. Since I didn't ask for synthetic,...
Tow Vehicles
RCMAN46's avatar
RCMAN46
Explorer
Jul 23, 2013
Perrysburg Dodgeboy wrote:
gmcsmoke wrote:
Why are we talking Allison transmissions when I thought the burb came with a 4l80e?


X2 :h


"Dex VI is now the only GM-approved fluid and is designed to be backwards compatible with all GM transmissions."

Because of the quoted statement. The Allison 1000 is found in 100 of thousands of GM trucks. Many that own the early models may think it would be OK to use Dex VI in the early models. Just trying to correct some misinformation.

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