[vulcanrider]

I going to change my coolant. My car is about 4 1/2 years old. For those who have changed their coolant, where did you get your new coolant? Older GM coolant is orange, while the newer stuff is red. I want to make sure I get the right stuff. Is it better to get it from a dealer?

 

[XtremeRevolution]

I used AMSOIL's low-toxicity propylene glycol coolant. I changed it early this year and haven't had a problem with it. Mixing isn't going to cause you issues; using the wrong water, or going too long between changes, is what causes issues. You don't need to get it from a dealer. I have a tutorial up for the coolant flush procedure:

http://www.cruzetalk.com/forum/129-...uze-antifreeze-coolant-flush.html#post2740610