I opted away from Dexcool after flushing my s10 with only 55,000 miles on it. Could not believe how much Solid black gunk came out of it. But like was said before, everyone has their own opinion on it.
That black gunk was block flashing that did come out of the block when it was made. It eventually breaks loose and that is what you get. LooK up how they are made add you'll see what im talking about.
The way I do at home full flush is first drain the coolant. Then put the plug back in. Dissconnect the heater hose line and run a garden hose into it and just let it run until water is Coming out of the other end clear. Put it all back together and fill with coolant and run it to get air out. This way you clean out the engine too and not just the radiator.
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Evans Waterless Coolants are the ONLY 100% waterless automotive engine coolant available on the market. All Evans Waterless Coolants are a chemical blend that results in more efficient cooling due to a higher boiling point. The increased boiling point of the coolant eliminates the occurance of boil over, cavitation, and detonation. Not only do Evans Waterless Coolants not boil over,they do not freeze. At extreme cold temperatures the coolants contract and become extremely thick, not becoming solid and expanding like antifreeze containing water. Because Evans Waterless Coolants do not contain water electrolysis and corrosion are also eliminated. Every Evans Waterless Coolant requires the entire cooling system to be drained (radiator, engine block and heater core) and refilled 100% with one of the Evans Waterless Coolants. No need to add anything. Evans now has three different coolants to choose from depending on the application and use of your specific vehicle. Also available is a flush fluid for smaller engines without block drains.
It deforms baby fetuses and punches Mother Nature in the ovaries. It's purported to be a "plastic eater" ... whether or not it's true, nobody can really say with tangible certainty. There are plenty of cases for and against it. Probably has more to do with the shitty quality of the plastic used more so than the actual coolant used.
actually the boiling point of water at sea level under say 16 lbs. pressure would be more like 250 F, but it will freeze when it sits still at 32 F or below, so that's where coolant really helps. Of course, the higher up in elevation you are, the lower the boiling point of water will be, but even at 6000 ft, under same 16 lbs. the boiling point would be 238 F or so. Just an fwiw...
2004 Pontiac GTO - Sold
2007 Cadillac CTS-V - Sold
2006 Pontiac GTO - Sold
1992 Mitsubishi Galant VR4
1971 Chevy Malibu "383"
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