For the 1996 Toyota Avalon the winter blend is now in the car.
The old oil filter is still in the car with about 1/2 quart of "old: oil, most of which would be remnants of:
1 quart of Supertech 20W-50 SN, four quarts of Napa 10W-40 SL grade fleet oil I got on a sale a few years back, and 1 pint of Marvel Mystery Oil.
I added about 3000 miles ago a quart of PYB 40W.
The five new quarts consist of Mobil 15W/50 Extended Performance (1), Mobil 5W/20 Extended Performance (1), a quart of 5W-30 Synthetic from O'Reilly, a quart of 10W-30 Valvoline, and one quart of 5W-30 Napa Synthetic.
The filter is a Bosch Distance+.
The oil and the filter will all be changed around 214,000 miles.