Originally Posted By: Red91
Not necessarily readily available, but I believe you can order Valvoline 20W-20 through Napa. Its a detergent oil, whereas the Kendall I've seen for sale is a non detergent.
With a 2.9(ish) HTHS it would replace an ILSAC oil nicely, and shear free...
Here's G-Man's test on his chrysler (a bit dated, but good).
https://bobistheoilguy.com/forums/ubbthreads.php/topics/1174209/Valvoline_20w20,_3500_miles,_C
Take that "stratospheric VI = protection" team...