Goo underneath oil cap
#16
Rennlist Member
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I lived in Denver and now in Austin and I've never seen any indication of this. I really believe it's more a function of how long the car is driven at operating temps. My ususal drive is 40 minutes at highway speeds.
#17
Race Director
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i drive my daily MB about 2 miles a day to and from the train station. its got plenty of gunk in the cap.