Originally Posted By: SteveSRT8
Please note that I like the experiment. But the electricity is not always present in properly isolated radiators and other components of the cooling system.
The fact is there are a lot of inferential deductions made and no real proof. The only way to do that would be to use real vehicles in real service, which of course would be expensive.
I have a lot of experience with Dexcool in very high mileage fleet trucks with heat exchangers in the system for aftermarket equipment. Even at ridiculous mileages (even up to 1/2 million miles!) there is zero corrosion, pitting, etc.
YMMV. Great post, though...
Same here. In spite of Dexcool's life rating, several GM techs told me never to do anything to the cooling system, ever, unless there was a failure or repair to necessitate it. Trucks and vans have since gone on to the scrappers (never for drivetrain failure) with factory fill Dex, and when finally drained, showed nothing inside.