Is it worth the risk having someone start the car without oil in the engine? Are you the only one with the key? What if you really need the car that night, it would be a drag to have to fill up with oil before being able to drive off. Change your oil and filter often seems to be the best plan.

BTW, could someone tell me why MB recommends removing the filter before draining through the pan on the 300D. Is this also recommended for my 450SL?

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1972 450SL
1982 300D Turbo