Denny, when did you install Dexcool. It was designed for aluminum blocks, and it has been in litigation for at least 12 years and GM reached settlements in 2008 before their bankruptcy.
I have used Fleetguard 50/50 for over 15 years in everything and have had absolutely no problems with it. I buy it by the 55 gallon drum, but it is available in gallons.
http://www.ryderfleetproducts.com/r...2CuIpB9YLyrE1-bu-lEYe6X7Px9dQaAsiQ8P8HAQ