Don't have all the answers, appreciate your input and will dial it in. Am concerned with running lean, that is reason for M/L. Will do the search and Please continue to test my assumptions, at this point that is all they are. I don't want to make an a-- out of myself and have to post that I blew the engine apart.

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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas