Quote:
Originally Posted by M2siast
If the manual calls for 6.9 quarts, that’s how much you should put in during oil changes.
Obviously you’re fine putting half a quart less if wanted, but that means the oil will last shorter, and you run a higher risk of oil starvation during turns on a track, for example.
There’s no reason to put in less than indicated.
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There are very good reasons NOT to add what is indicated as capacity, that is to avoid overfilling. There is always some residue left, and it can vary. I've always changed my own oil on all my vehicles and never have been able to add the indicated "capacity" when bringing it up to full.
What is interesting is my manual does not state the oil capacity. In
three locations it warns against too much oil. Even in the "tech data" section (which is woefully inadequate) the oil capacity is omitted. Perhaps i missed it...but i can find no reference to oil capacity in the owners manual (2022 US). I think they expect all BMW owners to have dealerships change oil as that complex operation is too technically involved for us.