i would be upset too especially if i told them what to use.

the main reason for concern about the correct coolant/ antifreeze is the head, i beleive, but the heater core is probably aluminum too. so perhaps it might be a problem for that too.

are you sure it is not a leaking hose?

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.