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bigt61, Unfortunately BMW doesn't put water or oil temperature gauges in most of their cars. After about 10 minutes of warm weather driving you can feel the difference in performance, so I would guess that the computers think that it is warmed up.

I did the oil change at 1,144 miles. The local BMW dealer did the next four annual oil changes, but forgot to give me a sample at 15,000 miles in 2012. I just did the oil change at 25,440 miles with BMW oil and will do all of the remaining changes. Next year's annual oil change and lab results...

There are no symptoms of bad behavior, no leaks, no oil consumption between the annual 5,000 mile oil changes, and no unusual noises. I usually drive very gently with an occational 7,000 RPM burst for blending with traffic on the highway. The car was delivered in Munich and was driven in...

Code: The N51 engine is SULEV 50 states legal for emissions, and is quite different than the older design 48 states N52 engine. The N51 has an Aluminum block core with Magnesium cast around it, which might account for the high Magnesium levels. Since this engine was new in 2009, and is not...

Code: Aluminum, Iron, and Copper have all increased significantly since the last sample. Is this engine coming unglued? 2009 BMW 128i N51 3.0L, BMW 5W30 Synthetic, 25,440 Miles MI on Oil 5,240 4,500 4,500 4,656 1,144 MI on Unit 25,440 20,200 10,300 5,800 1,444 Sample Date...