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 - Tractor Profile: Farmall M - by Staff. H so that mountable implements were interchaneable. The Farmall M was most popular with large-acreage row-crop farmers. It was powered by either a high-compression gas engine or a distillate version with lower compression. Options included the Lift-All hydraulic system, a belt pulley, PTO, rubber tires, starter, lights and a swinging drawbar. It could be ordered in the high-crop, wide-front or tricycle configurations. The high-crop version was called a Model MV.
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