I have a 2006 Grand Prix GT S/C with 110,000kms on, and the oil in the transmission is dark.
The car doesn't slip, there is no transmissoin noise, and shifts on on time, and how they should feel
The question is: This car may not of ever had a transmission oil and filter change done in its life. I have been told differnt things on what do do
Change it now, do a pan drop + filter change, but it could start slipping
Don't change it, but I would assume at about 140,000km i would start having problems
Flush the transmission and hope for the best?
Ideas?
Should I use dextron 6? Or is there other oils that would be better
thanks
