well, probably 100 is too high.

i would look at the cooling system. radiator fins clean? all fans working? mechanical? aux.? water pump?

iif you get it down to 80 or 85 in traffic you prob will lose the problem.... and get some joy.

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.