Performed two oil changes last night...
2006 Ford Five Hundred at 71,823 miles
Mobil Super Synthetic 5W30 with 4,914 miles
Mobil 1 M1-210 with 9,803 miles
Mobil 1 Filter and six quarts of Mobil 1 5W20 were put in at 62,020 miles. Went on a road trip last month and changed out the M1 to the Super Synthetic at 66,909 miles.
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2004 Chrysler 300M at ~126,000 miles
Who knows what bulk oil from somewhere at ~9,000 miles
Napa Pro Select filter at ~9,000 miles
Three quarts Mobil Super Synthetic 5W30, 1 quart each 5W30/10W40 old Valvoline Durablend SJ I found in his basement from 1999 or later. Mobil 1 M1-204 filter installed. Going to run this until spring or 6,000 miles, drain the oil and replace with Mobil Super Synthetic 10w30 and keep the Mobil 1 filter installed for 12,000 miles.