Originally Posted by notajeep
I topped 04 that says use dex 3 off with dex 6 and now it is slipping.
doing a fluid change today to see if it helps
When i changed the fluid on mine i dropped the pan, let drain, take out filter, replace with new filter, cleaned out the pan with brake parts cleaner, dried the pan, put the pan back together, dumped in 4 quarts of Mobil 1 Fully Synthetic ATF: https://www.mobiloil.com/USA-English...hetic_ATF.aspx
drove it for a little bit, checked the level. Showed it was a little low. added a fifth quart, drove it for 15 mins, checked the fluid again. Then it was perfect. Have been driving it for over a week & it actually shifts a little easier in my opinion. No slipping or anything abnormal at all.
In my opinion just by adding dex 6 fluid with dex 3 fluid should not cause the tranny to slip. Is it slipping Bad? I know with several GM vehicles that the trannys go slip from time to time, i have noticed this with the gmc savannas and the chevy silverados. It only slips occasionally and not bad. The mechanics call this a glitch.
On the Mobil 1 website it gives the following:
Also suitable for use in vehicles that specify the following fluid requirements:
All 2005 and earlier GM vehicles**
** Mobil DEXRON-VI ATF is recommended for 2006 and newer GM vehicles and improved performance in 2005 and earlier vehicles, wherever DEXRON is specified.
So with that being said in my opinion i don't think that the fluid addition would cause a problem. But maybe if the fluid is extremely dirty and adding dex 6 would cause it to slip?? hard to tell. There are many people who are on this site that would probably give more answers to the solution.
Hope all goes well for you.