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How do we know what normal numbers look like? And is there anything besides lead/copper we need to look out for? I'm at 102,xxx miles and haven't done the rod bearings or even an oil analysis. I drive like a grandma for this reason now.
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2014 BMW X5 Sdrive35i F15
2011 BMW 328i E92 LCI
2006 BMW Z4 M Roadster E85
2013 BMW S1000RR K46 R.I.P. 
1998 BMW Z3 Roadster 1.9L E36 SOLD |