Change GM coolant in C6 Corvette

DooKey

Golden Member
Nov 9, 2005
1,811
458
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I purchased a C6 Corvette a couple of months ago and it had a recent oil change but that was it. Corvette has 38K miles on it now (37K when purchased) and I'm kinda concerned about the coolant. It's a 2011 Grand Sport and the coolant looks kinda dark. I think it's time for a flush. What say you?
 

Jimzz

Diamond Member
Oct 23, 2012
4,399
190
106
Yea just drain/fill will be fine. Then do again at the 100k or 10year, which ever comes first.
Store brand coolant will be fine as Prestone and store brands are OAT based coolant, dexcool without the orange dye. Walmart has a store brand Orange Coolant if you want to keep the factory color.
 

trenchfoot

Lifer
Aug 5, 2000
15,457
7,978
136
Some Chevy's have a specific way of draining and refilling coolant other than the usual simple way it's done on many other vehicles. Not following instructions tailored to that vehicle can result in some really expensive repairs including blown head gaskets.

As a precaution, make sure there aren't any special instructions for your ride as far as coolant drain and refills are concerned.

Jus' say'in.