M156 correct spark plug gap?
05-15-2012, 12:08 AM
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2007 E63
M156 correct spark plug gap?
anyone know for a fact what the proper gap is on the OEM NGK plugs?
i have seen .031" at alldata and .039" and .040" at most of the spark plug wholesalers,and the Densos are at .044".
kind of curious as to why all the different specs floating around,well i can understand the difference between the Denso and NGK.
i have seen .031" at alldata and .039" and .040" at most of the spark plug wholesalers,and the Densos are at .044".
kind of curious as to why all the different specs floating around,well i can understand the difference between the Denso and NGK.
