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      05-06-2013, 05:15 PM   #70
lsmkr01
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Drives: E92 M3
Join Date: Feb 2007
Location: SC

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I run Chevron Techron fuel system cleaner before every oil change and do minimal city driving. The cleaner removes buildup and all those contaminates go into the oil so its necessary to change the oil after that tank full. Also, stretching the engine out (use the entire rev band) often and running Shell 93 V-power religiously has had all my BMWs running like champs.