B.S.
It won't eat aluminum if properly maintained...age and air make it acidic
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BS. you didn't maintain it properly. You're thinking of the green sh!t. Green stuff wears down aluminum faster which is why manufacturers no longer use it considering water pumps, radiators and newer engines and heads are aluminum.
Just wanted to say this first. If you really believe that the green sh!t is better then great. Run that crap in your car because your car isn't my problem lol
Dexcool is corrosive when mixing with the moisture...which is a lack of caring for the system.
Case in point, my old man's 15 year old Camaro...it's got dexcool. Everything is fine and sludge free, no engine failure.
My mom has a 2003 LeSabre with dexcool as well...only thing that was touched was the intake gaskets when her manifold warped like many of them did (N/A) car. That motor is spotless.
The only reason I don't run dexcool is because of these easy reasons:
1) Price
2) Mixability
3) I'm lazy and the green/yellow stuff works
The end
I talked with Matt about it a while back and it is still corrosive to aluminum parts even when properly maintained when in a cavitated motor. Which was one of the biggest reason Ford ditched the 4.6L and redesigned the 5.0
The "DexCool" designation means the coolant passes General Motors performance testing. Although DexCool is not a specific formula, all three brands that have the label (Texaco Havoline, Prestone Extended Life and Zerex Extended Life) are somewhat similar. In particular, they're OAT coolants, but the similarities go beyond that basic description.
All DexCool-approved coolants to date use two organic acid rust/corrosion inhibitors, one called sebacate, the other called 2-EHA (which stands for 2-ethylhexanoic acid). These organic acids are very stable and last a long time, although they take thousands of miles to become fully effective in protecting coolant passages.
Hybrid OAT (HOAT) coolants, such as "Zerex G-05¨." Use organic acids, but not 2-EHA (2-ethylhexanoic acid) (different organic acids are used). Hybrid OAT coolants add some silicate to provide quick-acting protection for aluminum surfaces.
This was after some quick Google work.
When running, I prefer the orange stuff. That lime flavored green is nasty.
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