- Jan 3, 2006
The Ram I just bought has big warnings to only use OAT coolant, and the stuff that's in it is pink. The Honda I've only used Honda coolant, which is blue. For the MG I have some old Prestone bottles with the traditional green stuff. Out of curiosity I thought I'd see if Prestone has the right stuff for the Ram, and looking up on their site, all 3 come up with their all-vehicle coolant. Aside from the color mismatches, can it truly mix with the others? Something sounds fishy, I've always heard you shouldn't mix coolant types. I even looked up the wife's departed Equinox (Dex-cool), and yep, this stuff says it's for that too!