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      01-15-2017, 08:23 PM   #24
0w40X1
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Drives: 2014 BMW X1 s28i M Sport
Join Date: Sep 2013
Location: West Texas

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One can open oil cap, and get very good idea of color of oil.

Oil can stay in engine for years without hurting anything, but don't tell your dealer. Read BITOG.com for lots more oil info and Used oil analysis.
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