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E90 M3 (Sedan) | E92 M3 (Coupe) | E93 M3 (Convertible) (2008-2013) {Engine: S65 - Max Hp: 414 hp (420 hp Euro) at 8,300 rpm / 295 lb/ft at 3,900 rpm}


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Old Fri, Apr-09-2010, 02:09:00 PM   #1
Double_J
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Default Oil Consumption related to warm up?

Just had a thought.

My 08 e90 has always been good with oil consumption. I would rarely (if ever) have to top it off between services.

That said, I recently changed the way I drive when the car is warming up. I used to use 4,000 RPM as my limit until the car hit temperature but switched to 3,000 based on what I've read on this and 'the other' M3 board.

After the change, I've noticed that I'm losing a bit of oil. Not enough to be considered a problem by any means but definitely more than I did before.

I'm going to top off the oil and go back to the 4,000 warm up practice just to see if the oil loss stops. In the meantime, are there any technical merits to this? Is there any reason that warming up at a lower RPM threshhold would allow a bit more oil loss than a higher one?

I've read about driving style, break-in, etc. all affecting oil consumption but I don't think I've really heard this one mentioned yet.
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Old Fri, Apr-09-2010, 05:48:21 PM   #2
Da Jemster
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How are you topping it off with no dipstick?
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Old Fri, Apr-09-2010, 09:09:37 PM   #3
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Quote:
Originally Posted by Da Jemster View Post
How are you topping it off with no dipstick?
Figured I'd wait until the meter showed minimum and then add a quarter of a bottle at a time until it shows max (like others have done on this board).
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Old Sat, Apr-10-2010, 02:02:41 AM   #4
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I would have thought you would have more consumption with higher revs. I don't know if it really has anything to do with it either way. I burn about .5L every 7500 miles. I broke my car in pretty hard while mostly observing the rules before 1200 miles. I made sure I put a lot of compression on the motor and I think it worked.
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Old Sat, Apr-10-2010, 02:22:51 AM   #5
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if your burning... your over filling simple as that.
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Old Sat, Apr-10-2010, 03:25:30 AM   #6
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i burn alot, usually atleast 1 qt before every 7500 miles i thought that was normal tho, how much is everyone else doing
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Discussing Oil Consumption related to warm up? in the E90 M3 (Sedan) | E92 M3 (Coupe) | E93 M3 (Convertible) (2008-2013) Forum - {Engine: S65 - Max Hp: 414 hp (420 hp Euro) at 8,300 rpm / 295 lb/ft at 3,900 rpm} at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)