Thanks. Mine reaches 3 after about 2~3 seconds. 20W-50 synthetic (first synthetic from petroleum). 231000 miles.

By the way, there is wet looking oil on the right side of the engine (when viewd from front to rear. in other words, driver side). Not right side of cylinder head, but right side of something attached on the right side of the cylinder block.

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1992 300D 2.5 turbo diesel. 319 k miles.
124.128 chassis, 602.962 engine, 722.418 tranny.