UOA results @ 354k
Comments — “Wear generally increased after the shorter 5,211-mile oil change, but not enough to suggest that any mechanical problems are developing. Instead, the extra wear was likely caused by something operational such as some heavy hauling/towing or increased idling/city driving. Potassium and sodium are common ingredients in WVO, so that’s very likely where these elements are coming from, but watch the coolant level on the off chance they show antifreeze. The trace of fuel is normal. A TBN of 6.4 is strong. Your 7.3L PSD should do well with 7K miles next time.”
