Quote:
Originally Posted by Orion335
I can try. The dealer burned half a tank of gas and put around 10 miles on the car, I'll chalk that up to testing. But they scuffed my door, to add insult to injury.
I'm totally stock, it's a CPO car, so I'd assume it's relatively unmolested. They told me that because it wasn't making that noise at the dealership, and because the tech couldn't find a leak, there's nothing they could do.
Two quarts in less than 1,000 miles. The car didn't give me the notification for low oil until I ran the check control myself. Even making that knocking it didn't give me a warning light or anything. It doesn't remain that loud once it's warmed up, but the engine "shudders" when it's being cold-started about 3/4 of the time. The RPMs jump around rather violently, instead of spiking and gradually settling like normal.
I was tempted to finally add some bolt-ons and do a JB4, but with this motor, I'm not playing that risk. I don't see any unusual smoke, but the exhaust tips get pretty dark, and there was what looked like slight oil residue on the engine cover. I don't drive it ridiculously hard either, my Charger was driven much harder and never gave me any issues.
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How the hell did the dealership go through a half tank of gas in 10 miles!? Out of the 5 BMWs I've owned, the most oil I've ever gone through is about 1 Qt in 6000 miles. Most have been less than a Qt in 7500 where I do an oil and filter change. Something is seriously amiss if you lost 2 Qts in less than 1,000 miles. There is no normal situation that would do that, even if you had a 'well-worn" engine. That oil is going somewhere. If out your exhaust, you will have a very oily thick residue and a lot of black smoke, terrible performance and badly fouled plugs.