[Stephen12ZL1]

Everyone hopefully knows Dexron VI supersedes Dexon III and is backward compatible. Why GM would even list it as a recommended fluid is baffling but not surprising.

[zapp]

Originally Posted by Stephen12ZL1

Everyone hopefully knows Dexron VI supersedes Dexon III and is backward compatible. Why GM would even list it as a recommended fluid is baffling but not surprising.

For the Dexron VI, does it make a difference which version you would use?


ACDelco GM Original Equipment 10-9395
Dexron VI Automatic Transmission Fluid


ACDelco GM Original Equipment 10-9244
Dexron VI Full Synthetic Automatic Transmission Fluid

[CalgaryZL1]

Originally Posted by zapp

For the Dexron VI, does it make a difference which version you would use?

Attachment 1131019
ACDelco GM Original Equipment 10-9395
Dexron VI Automatic Transmission Fluid

Attachment 1131020
ACDelco GM Original Equipment 10-9244
Dexron VI Full Synthetic Automatic Transmission Fluid

I’m guessing there’s no difference, if you look at the bottle one has French which means it’s probably Canadian and one is English only i.e. American. The latter one also says full synthetic.

[Stephen12ZL1]

use the one which is available...the second one appears to be the Canadian equivalent which has a different part number

[MatthewAMEL]

Use the HP-MTF from TREMEC.


I ran it for 5+ years in my 1LE (that got tracked 10+ times a year) and now am running it in the Blackwing. It's a FAR better fluid than the ATF.


The ATF is a cost saving measure for GM.


If you REALLY want to keep using the ATF, then make sure you follow the fill procedure. You have to allow room for the ATF expansion when it gets hot. That's why they have you fill and then remove 8oz. No such requirement with the HP-MTF.