BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST - View Single Post - 840i Engine Replacement

4JawChuck · 01-24-2024, 01:32 PM

My bet is the wrong oil was used for an extended period, those aluminum shell tin coated bearings are junk and don’t tolerate poor oil…once that tin coating wipes off the engine is done for.

01-24-2024, 01:32 PM	#5
4JawChuck Private First Class 219 Rep 105 Posts Drives: 2013 128i SE Join Date: Feb 2023 Location: Canada iTrader: (0)	My bet is the wrong oil was used for an extended period, those aluminum shell tin coated bearings are junk and don’t tolerate poor oil…once that tin coating wipes off the engine is done for.
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