I was on K6JFR's website looking at his section on Water Wetter. He describes assuming that his water to coolant ration should have been correct given that the car had been serviced at the dealer. He found it to be incorrect.

I have the same scenario. Car had it's 90K dealer service at 99K and coolant was changed. Think I will buy the little Prestone ratio tester and check it out.
Maybe the coolant to water ratio is too high, which would cause the engine to run slightly hotter than I was used to in the 124's.

Steve

Steve