By the way, the VW coolant is also carboxylate based, same as the Dexcool. Carboxylates do not deplete so you should be fin even after all these years

OK Luke got it but I can tell you that carboxylate technology used in dexcool is the best to prevent corrosion. All truck manufacturers are inisisting on it these days. In cars, the thing is not so critical so you may get by with the green stuff. Reason for the sludge you have see in the GM vehicles...

why deathcool? name is Dexcool and it works just fine!