Quote:
Originally Posted by yco
50 might be too thick for oil passages in S63.. 40 is more reasonable if not using 30 as BMW recommends..
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Maybe he is recommending 50 weight so he gets more business lmao. I feel like 40 weight provides plenty of lubrication. And like I said supposedly someone in middle east that drifts their M5 went with 60 weight and that only lasted about 3k miles before failure.
I have been thinking about getting the colder thermostat....haven't looked into how involved of an install it is though.