Red Coolant

[MarK M]

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, :beerchug:

[H3NCO]

if its the same kind of coolant that i have in mine, i'm assuming they are all the same, the dealership told me that it crystalizes in the system. They said that all i needed to do is ad water and that the coolant is good for 100,000 miles. might want to ask them....

[MarK M]

if its the same kind of coolant that i have in mine, i'm assuming they are all the same, the dealership told me that it crystalizes in the system. They said that all i needed to do is ad water and that the coolant is good for 100,000 miles. might want to ask them....

thanks for replying. just talked to a buddy of mine who knew about this new crystalizing coolant. He said it was called dexcoolII, which i guess GM is using now. I'll see if I can pick some up from autozone or something.

[My Wife\'s Hummer]

go to autozone. most coolant makers are making coolants that can be mixed with either (red or green).

autozone should also carry the dexcool.

definitely don't mix standard with the dexcool.

[f5fstop]

DO NOT mix coolants, go with DexCool or equivalent. Adding other types of coolant could damage engine passages.

[MarK M]

boy, its a good thing I posted.

thanks again guys!

[westhillsat]

boy, its a good thing I posted.

thanks again guys!

Thanks for bringing up the topic Mark and thanks f5 for the warning.