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      08-10-2020, 06:43 PM   #1
bmwm3s65
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Drives: 2009 BMW E90 M3 6spd
Join Date: Feb 2016
Location: USA

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glitter, flakes, magnetic material in oil after some high RPM driving

So I took a trip this weekend to the tail of the dragon and back roughly about 1200 miles total. Car appeared to run fine the whole time. I got home and decided to check my oil since i burned 3/4 of a quart on the trip which i figured was due to higher than normal sustained rpms. i pulled the filter out and examined it and found the following. I confirmed some of the material is magnetic. it is not peelings from the valve cover. Most of the driving was high rpm on the dragon and some on the highway. The only time the car ever, ever, sees 5-7k rpms continuously in 2nd and 3rd gear is through the whole dragon run, however, never redlining. currently @ 78k miles, never tracked, nor supercharged, never red lined, properly warmed up every single time to a fault. rod bearing replaced with BE bearings and be arp bolts about 25k ago. spark plugs changed every 10k, castrol 10w60 oil every 3-5k. I just changed the oil before i left on my trip so it has at most 1,300 miles on it. At this point the engine still appears to run fine. I wonder if this could have been caused by oil starvation from all the hairpin turns. At minimum, i am going to change the oil again. At the moment, I don't have the money to pay a shop to tear it apart and inspect the bearings so i can either tear it apart myself and inspect it or just change the oil and monitor it. Logically i think the only way to gauge how bad it is, is to open it back up and inspect it myself and i think the pictures support this, but i wanted to get some opinions first.

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Last edited by bmwm3s65; 08-10-2020 at 07:10 PM..
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