dexcool antifreeze

Old 09-20-05, 08:50 PM
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dexcool antifreeze

What is the deal with Dexcool coolant, I've read that it causes leaks at gaskets, will corrode engine internals and radiator. Can you flush a system that had Dexcool and use regular antifreeze?
Old 09-21-05, 10:12 PM
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won't corrode anything, but yeah you can flush and fill with regular old green of any brand.
Old 09-22-05, 05:38 AM
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The problem with DexCool is that it is not tolerant of air in the system.... that is, it needs to be kept tightly closed. That's one of the reasons why a lot of manufacturers went to a pressurized see-through overflow tank design for cooling systems.

DexCool is not compatible with other antifreezes. If you want to switch from or to DexCool, you should do nothing short of a complete flush. This includes flushing the heater core.

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