I notice the same thing..when the car is at idle or slow..the engine temp raises..but when u start moving fast.it drops.cause of the cold air getting into the engine..

solution.....dont drive in traffic...take the bus..subway.....

reduce emissions.....save the earth!

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87' 300E champagne - Euro headlights and corners, 8-hole rims, 140,000miles/220,00km.