Opie Knievel
Rum Fueled Midnight Mechanic and Moderator
Looking good so far Jared. As far as the Dexcool is concerned, I think the main problem with it is corrosion. My wife's '03 Impala had Dexcool in it it's entire life and recently it started having an overheating problem. Her dad volunteered to fix it for her and I just didn't feel like messing with it so we let him take the car to work on it for a while. He said the radiator was full of gunk and when he flushed the block and heater core there was more gunk. The car also had an intake gasket leak but from what I've seen it's pretty normal for a 3400 to develop an intake gasket leak. I've put an intake gasket and 2 water pumps on the car since we've been together and that's been a little less than 4 years.
I've talked to a mechanic who used to work at GM dealerships and he told me that Dexcool was bad for causing corrosion and gunking up the coolant system. He told me the best thing to do with a car that had Dexcool in it was to flush it out really well and replace it with regular antifreeze. I trust his opinion on stuff like that. The wife's '15 Malibu has Dexcool in it as well and we're planning on replacing it in the near future.
I've talked to a mechanic who used to work at GM dealerships and he told me that Dexcool was bad for causing corrosion and gunking up the coolant system. He told me the best thing to do with a car that had Dexcool in it was to flush it out really well and replace it with regular antifreeze. I trust his opinion on stuff like that. The wife's '15 Malibu has Dexcool in it as well and we're planning on replacing it in the near future.