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Originally Posted by nobby
Nice...Page62. Now we are getting somewhere. That is more like "facts" (albeit, self serving, perhaps, for Zerex ).
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Actually, these are about as close to "facts" as you'll get. Zerex also sells a DEXCOOL product, as well as a traditional green antifreeze (for those on a budget). I think they are merely trying to match their products to the correct end users...
That said, I'm not sure what chemistry Prestone uses. But they do claim "extended life"...so perhaps it's a HOAT as well. Who knows?