I had Blackstone run an analysis on my Mobil 1 with 4200 miles on the oil
and they recommended that I go to 5000 between changes. I run a K&N filter
with Mobil 1. The only element that was high was Magnesium and that's because
the 4.7L has mag. rocket & cam covers. Bill
SEMIHEMI01@AOL.COM> KB SuperChargeded, 4.7L, 2001, QC,
<A HREF="http://hometown.aol.com/semihemi01">the "DAK",</A> <A
HREF="http://futuresite.register.com/jump?url=http%3A%2F%2Fsouthernmopar.org">
SouthernMoPar</A>
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