Thread: OOPS! Dex III instead of Dex VI ???

Originally Posted by rossscrappy

crap i put in dexmerc even though it is not gm approved do you think it will harm anything? *EDIT* it says on the back that it is compatiblle with 98-2005 gm cars where dex III is required. sounds gm approved to me

What you probably used was a Mercron Spec fluid. Meaning that it is an approved Mercron fluid. But it also is compatible with the Dex III fluid. But it might not meet all the specs. Fluid specs are kinda funny.

But you will be fine. Just in the future stick to Dex VI fluid and don't listen to the guys trying to sell you parts behind the counter.