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 - Picking Corn - by Rick Nikolich. It was the day before Christmas shutdown at work and I asked our lead engineering expert Scott Andrzejewski what he was going to do over the holidays. He said that he had some corn that he still needed to pick with an antique one-row New Idea corn picker. Scott has a nice farm about an hour north of Lansing in St. Johns, MI. He wanted to get the rest of his corn in by the next day (Christmas Eve). We had about an inch of new snow on the ground and single digit temperatures. So in the bac
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