Thanks for the helpfull input everyone. Since I did not own the car last summer, I have no basis for comparison. I know htat the newer engines run a bit hotter, but I do not what to explore how close to the edge you can go before you do some hefty damage. But for $8 (Water Wetter) and a coolant change it sounds like the right type of insurance policy to take out.

Thanks again.

Dean: Where did you get the water wetter, my dealer does not have it.

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94 E500 (Silver/Black)