I just got my oil changed and I told my mechanic to put synthetic in it by
mistake. I've been running regular Mobil in it. I have 16,000 miles on the
stock 4.7. Is it ok to switch back if I decide to? He told me I could go
around 7500 mi. before the next change?? And, what differences should I be
noticing with the syn in it?
TIA
DySmith
2002 QC Manual 3.92, 4.7 SLT 2WD
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