ull get a few years out of em. maybe 50 to 80k miles. if u left the dex cool in there it seems to tear the gaskets up a little bit faster. the good ol green stuff doesnt hurt it as bad.
I do.
At the very least something like prestone long life.
well eddie then i guess you didnt have much choice. just sucks cuz ur gonna lose quite a bit of coolant doing the gasket replace.
doesnt seem like theres much of difference with felpro and gm but i suppose thats personal preference. as long as you have the metal kind which is the 2nd design, you're in a better position.
i dont like dex cool. sh!t stinks real bad if its old. which everything does but dex seems worse. IMO it tears through gaskets much quicker. if you do a proper flush you wont mix Dex and green because that is bad. so if its just green you're good. Dex seems more designed for enviornment friendly purposes. you have a good mixture of green and water then you cant go wrong. but thats just my opinion.
I thought the green stuff was extended life already?
When people say they "flushed" out their coolant system to put green stuff in I always hope they did it correctly....
The system should be drained and replaced with distilled water and a flushing agent.....then the heater should be turned on, run the car like that, repeat flush. Then flush with distilled water at least 2 more times. Also a good idea to change any rubber hoses
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