I have a 190E 16 valve, and I change oil (or have been) twice a year or about 5,000 mile intervals. I used Mobile 1 15w-50 in the Summer and Mobil1 10w-30 in the Winter in the past. Currently I've changed over to Mobil 1 0w-40 for all year use. It seems to run very nicely on it.
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