Topic: Something as simple as antifreeze has helped torpedo GM

[articsteve]

The original poster of this topic (articsteve) stated in his last paragraph, "I would suggest you find and fix your coolant leak (intake mainfold gasket) and refill with the coolant that EVERY AUTOMAKER IN THE WORLD USES" (referencing the newer HOAT antifreeze).

BarnHwk:  that was a quote from the captioned link.

Visit:    http://forums.corvetteforum.com/   and search "DEXCOOL".

[PJungnitsch]

This is the best rundown on all the different types of antifreezes I have found:

http://www.motor.com/magazine/pdfs/082004_04.pdf

2-EHA is the special Dexcool additive that seems to cause all the controversy about seals:

The inhibitor 2-EHA poses another issue: It's a plasticizer (softens plastic), so it has been blamed for coolant passage gasket leakage. Softening (and the resulting distortion) was reported by Ford, which encountered gasket leakage problems when it tested a DexCool-type formula on its V8 engines. Ford also saw similar issues with other gasket materials. That killed the OAT coolant idea for Ford, which had used a DexCool-like coolant in the '99 Cougar V6.