2004 coolant
September 30th, 2012, 1:08 PM
#4
CF Monarch
I don't think it's an issue with the 5.3. I have a 2000 5.3 with dexcool. Had it flushed two years ago, and replaced with dexcool. I think the problem was the 5.7 plastic turkey tray in the intake, plastic gaskets, what next.......... I hope someone with more experience can confirm this.
September 30th, 2012, 10:19 PM
#6
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They say dexcool is the only thing you are supposed to put in the GMs especially because with having the aluminum block the regular coolant will cause corrosion. I would not use anything else other than dexcool.
October 1st, 2012, 5:00 PM
#7
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Dexcool is the only thing they say to use in GM's. Either use Dexcool or go to a shop who can flush/fill with Safety-Kleen's Khameleon Antifreeze.
Last edited by MDTAHOE; October 3rd, 2012 at 9:37 PM.
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October 2nd, 2012, 5:37 AM
#9
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Yes, they do but that would require someone to put down their computer and actually read print. Seems it's easier to have someone else do your work for you.