Quote:
Originally Posted by chris719
It very likely won't cause any damage if you aren't tracking it. Could even be better for short trips around town. Just get it changed when you can.
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For a hot running engine like the N55 or S55 dropping oil weights is likely not a good idea. Especially if they are using their FE blend of 0w20 which would make the HTHS rating plumment drastically. Cold starts would be fine, but high operating loads like WOT idk...
The whole reason bmw is moving to thinner oils and making FE oils is for emissions.