Hello,

i noticed a coolant problem on my 72 Satellite: whenever i take the car to the autobahn and put some miles on it with steady 80 mph, temperature rises above the normal level (not extremely, though). when i take the exit an the RPMS go down, the coolant seems to boil over and splashes rom the radiator cap all over the engine bay.

Around town there is no problem at all.

What am i looking at? Clogged radiator? Insufficient pump?

Any help is appreciated!