I added 15 QTs of M1 AFE 0W-20 and 24 QTs of PYB 20W-50, but donated 10 QTs of Formula Shell and all 24 QTs of PYB for a net increase of 5 QTs.
My stash of engine oil is now:
10W-40 QS Defy = 12 QTs
0W-20 Kendall = 6 QTs
0W-20 M1 = 150 QTs
BITOG running total is 37,365 QTs