Time for a PS flush and I was wondering what fluid to use. The manual gives a GM part number of course but I'd rather not go to a dealer and pay triple. I looked at NAPA and Prestone fluids but they did not specify for GM. Is regular power steering fluid OK?

 

Yep....I use Prestone

 

The GM number is regular PS fluid. They also make a cold climate which is a semi synthetic. Amsoil does make a full synthetic. I use both the GM cold climate, and the amsoil.


If I were going thru the effort of a power steering fluid flush, I would switch to a synthetic. Just a thought.

 

Thanks guys!