Hey guys,
It's been a really long time since I got on this board. Just wondering, my coolant is low on the 3 and I was going to fill it. However, before I do, I wanted to ask... can I mix different coolants?
I noticed Hummer uses a red coolant, and I was just going to go to autozone and pick up a jug of prestone. Should I just pick some up at the Hummer dealer and pay an arm and a leg for their coolant? Your thoughts
thanks,
