Quote:
Originally Posted by BowtieGuy
Dex Cool is far more effective than most people seem to think. Most vehicles come with it from the factory anyways. That myth needs to stop.
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Early dex cool did have a problem, It happened to me and one of my friends. My 96 Blazer and his 98 S-10 both came with it, and because most of the time they were driven on short trips and never fully got up to temperature in about 2 years the Dex Cool jelled, and stopped up the heater core. The dealer wanted 96 dollars to flush it out and refill it, but I did it for 4 bucks and then refilled it with regular old prestone...
But they must have fixed that problem because I have had several cars with it since and none ever developed this problem again.