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Keep DexCool
I too agree that DexCool takes on alot of crap and misinformation. The key to success with DexCool in not allowing air into the system. Keep your 'puke-tank' at the proper level, and if possible, replace the GM radiator cap with a new on or better aftermarket of the proper size/PSI.
It's easy to say DexCool is crap but again as it has been expressed before, they (GM) continue to put it in $70,000+ cars/trucks etc and why would they do that ? So they could loose money on warranty work ? I doubt it....
The real crux of the problem is that people think that when the "manual" says extended life that it means I don't have to do anything, raise the hood, check anything..I just run it for 150,000 and then whine when something goes bad.
Come on we come for the 'old-school' nothing is perfect, and check your systems routinely, keep your system up to the proper level all the time and you will be fine.
I have a 99 blazer and when cold I pop the cap and look in the radiator and it's just prestine and clean at 153,000 miles...I flushed at 100K and will flush again soon, but have had zero problems, leaks, have great heat, matter-of-fact I have to turn down the head setting as it is VERY hot....
Just my 3.5 cents...
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