I have a 1998 gmc sierra 1500, anyways my radiator cap has sludge in it.I heard that this is a common thing with dex cool however will this sludge harm my engine? I flushed and filled my cooling system about one month ago,and sludge is beginning to form again.What can i do about this??
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dex cool
- Thread starter jg98
- Start date
Why GM is forcing dexcool on owners is beyond me. Can you imagine what the inside of the cooling system looks like? On mine; I drained it, flushed with fast flush, flushed with water, and then replaced the fluid with super tech (walmart) "mix with any color" antifreeze. It operates and cools just fine.