Your input is very valuable Jim. What you have described about the fan is true. When hot it doesnt want to spin freely, the opposite when cold. When driving down the highway my temp needle is slight.....ly above the 80degree mark. As soon as I exit the highway, temp goes to about 82 or 84 degrees, well below the center line. And It takes quite a bit of hard and slow driving to bring the temps upto center line. Then if i can get into some open road the temps will drop, but once I pass the point where the electric fans kick in, the temps just keep rising, unless I put it into Neutral and rev the engine to about 4000. Which I won't be doing anymore.

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190e 2.6 1990. 300,000 KM
C230 K 2000, 130,000 KM