I have been using Dexcool (the orange antifreeze) in my 428 for about a year now with what I think are good results. Motor seems to run a little cooler and the crud that always used to build up in the cooling system does not seem to happen anymore. Now I hear that Dexcool should not be used in older vehicles especially ones with the brass/solder radiators. Why, who knows, but they say don't use it. Anyone hear anything about this?

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I have been using Dexcool (the orange antifreeze) in my 428 for about a year now with what I think are good results. Motor seems to run a little cooler and the crud that always used to build up in the cooling system does not seem to happen anymore. Now I hear that Dexcool should not be used in older vehicles especially ones with the brass/solder radiators. Why, who knows, but they say don't use it. Anyone hear anything about this?

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RPM, here is a page that has some useful info on this subject. When I rebuilt my 400 I suggested using it and a mechanic friend strongly advised against it. Went with the regular antifreeze. This new product along with others will have to prove themselves over time, Later
http://www.geocities.com/MotorCity/D...7/dexcool.html