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      09-26-2012, 01:43 PM   #1
TexasZed4MC
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1/2 quart more oil????

I was wondering about this. When I tracked my E30 M3 for the 6 years I had it, I always overfilled the engine oil by about 1/3-1/2 quart of oil. In the S14 engine this prevented oil starvation on hard cornering and braking. This was a commone practice with everyone. Does the S54 need to be treated the same way?
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      09-26-2012, 01:56 PM   #2
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I believe the S54 comes with a "semi-dry" sump design, where the wet sump in complimented by a secondary oil pump, or the dry-sump to prevent the oil starvation problems common with 100% wet sump designs of the not so distant past.

I don't think overfilling would be helpful on this engine.
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      09-26-2012, 01:56 PM   #3
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Good question, I'll jump in and ask the same for the N52?
I know you don't want to much of an overfill which will create other problems. Is there a "sweet spot" for overfill with our cars or does it really matter?
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      09-27-2012, 10:20 PM   #4
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Good question. I was told if I was going to start to track the car regularly, that I should upgrade the oil pump. Something similar to the e30m3 track car?
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      09-27-2012, 10:31 PM   #5
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Quote:
Originally Posted by The HACK View Post
I believe the S54 comes with a "semi-dry" sump design, where the wet sump in complimented by a secondary oil pump, or the dry-sump to prevent the oil starvation problems common with 100% wet sump designs of the not so distant past.

I don't think overfilling would be helpful on this engine.
This. Same thing I've found out about our engine as well.

On wet sump engines, people usually put close to a quart over (mostly to avoid lifter tick).

With maintaining accurate oil levels (3/4 on the dipstick range). I never got lifter tick on any autocross day or track day.
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