I Ran Dexcool In mine with no issu'e i've always been a big fan of Dex 70K on it changed Water pump do to a leaking gasket, but itleaked since 30K. I used a sealer as a temp fix it took almost 70K to leak again and only after I did a coolant flush. Pump was in perfect condition upon removal could have reused I just figure if it's coming off why not replace. May be his did help contribute to my T-stat housing failure.