I hate to ask, but I search and read until I am blue in the face. I have a 1994 Z28 with 149000 mile just had the car for roughly a month. I want to change the transmission and rearend fluids. I wanted to use Mobil 1 ATF for trans and 75W-90 for rear, but after reading not sure if its ok to use synthetic.

Thank you for your time

Mark

 

i now alot of people wont use syntetic, when i did mine i didnt

also when you change the rear end fluid make sure you put posi additive in it

 

It's your choice. I don't see any reason why you can't.

 

Thanks Shoebox