Dex-cool is orange, 5yr Coolant from GM for GM
part# 12346290 - $25.07 +tax at the dealership
beware, do not mix green and dex-cool it will not be pretty for your radiator, water pump, or motor in general and it turns black lol
black fluid is never good hehe
I would flush the system completely and go with dexcool but it is expensive, cheaper at autopart stores but still pricy... and it prolly wouldnt hurt to replace the gaskets and the thermostat IF they mixed... but like i said, if orange and green mix it turns to black and then gets sludgy, if its still green i wouldnt worry too much. Btw if its pink, not orange, its... mopar coolant (dodge/chrysler)... but what oddball would do that i dunno, but i wouldnt let it mix either just to be safe
Last edited by tlsheff; 01-28-2009 at 10:44 AM.