[bbdon]

I have been reading a lot about this subject too, since we have an S-10. My understanding about the Dexcool is that the chemical reaction that creates corrosion protection with this coolant is dependent on high temperatures to work. So in a show car that does not get warmed up much, you don't want Dexcool. It won't provide any corrosion protection at all on a trailer queen. I think that some of the sludge problems that people have been having were traced to incompatible stop leak, which may have actually been put in by GM at the factory. The advantage of the Dexcool is that it lasts longer, and reduces water pump wear. I don't think that those are important factors for a valuable low mileage musclecar.