As one of my good friends works at a GM dealer I have heard alot of horror stories about Dex cool or as he calls it Death cool. As above, NEVER mix Dex cool and green/ conventional fluid. Sometimes even a flush with a garden hose is not enough. ANY leaks at all will cause the stuff to sludge up and push out/destroy gaskets it comes into contact with. ALWAYS use distilled water with Dex cool as contaminants can cause it to gel and sludge. There have been case were it turned acidic and actually ate away radiators. He suggests to change it at 2 years or 36k just like conventional. If you cooling system is up to snuff AND there are no leaks AND you flush correctly it is a decent coolant. I have removed it from all our autos, flushed and filled with the prestone any color coolant with excellent results. There is a class action lawsuit against GM because of Dex cool. Especially in the vehicles that had less than perfect cooling systems and/or problems with intake gaskets like the early vortecs. I personally lost 2 radiators and 2 sets of intake gaskets in my S10. They finally fixed it under warranty by power flushing the system and filling it with conventional fluid. I personally would not touch he stuff.
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Today's Featured Article - Fabrication (Who Me? Make it myself?) - by Chris Pratt. First of all, what are the reasons for not fabricatin your own parts? Most judgements on what should be purchased rather than fabricated stem from: Originality - If the tractor restoration is to be 100% original, it is likely that you should spend the time and money to locate the component in the used or New-old-stock market. Since this can be extremely difficult, you may want to fabricate the item or purchase a modern replacement temporarily, but eventually, you s
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