transmission fluid

[Charged4Door]

Can I use dexron 3 in my 2007 grand prix gt?

 

[Bluemagic]

You can but dex 6 is recommended

 

[HighOctaneRacing]

I wouldn't because several GMs have hard shifting with Dex 3 when the vehicle calls for Dex 6. Not worth ****ing up the tranny

 

[The Guz]

Stick with the OEM recommendation.

 

[Russosaur]

Didn't then 04+ years call for dex 6 anyway? If thats true then you cant use 3. I used Dex 6 in my moms 05 LaCrosse because its an overall better fluid than 3.

 

[Charged4Door]

K thanks guys I'll just wait till tomorrow and get some from the dealer

 

[Russosaur]

My local napa had the best price on dex 6 like 7.99/qt but I cant remember just shop around dealer might be expensive but idk

 

[SnowFlake]

I use dex/merc with a gallon of cat 30 weight gear oil laced in per Dave@TEP's reccomendation.
But that's for racekars.

 

[industrialfish]

Didn't then 04+ years call for dex 6 anyway? If thats true then you cant use 3. I used Dex 6 in my moms 05 LaCrosse because its an overall better fluid than 3.

06+ specs Dex 6, 04/05 still specs Dex III