For in-store pickup only, Walmart offers the Valvoline SynPower SAE 0W-20 Full Synthetic Motor Oil 5-Quart Bottle
, model no. 813460, for $22.97
charges the same with free shipping for Prime members.) That's tied with last week's mention and the lowest price we could find by $33. It purports to offer high temperature, sludge, and varnish protection.