I run the recommended Motorcraft in all my vehicles; gas and diesel.
I keep a stock on hand and am able to buy at better prices. I have: 2 gallons of 5/20; 7.5 gallons of 10/30; 11.25 gallons of 15/40 and various other weights. I also keep a ready supply of oil filters and air filters on hand.
I take the opportunity during my traveling to buy where I get the better price. I bought all Walmart had of the Motorcraft 10/30 in two different stores on my last trip. Got it before the price increase.
Speaking of price increase my wife was in a Dollar Tree today and all items were $1.25 each.
Stock up, prices are going to go higher and supply is going to be even less.