Our local Wal-Mart had a varied selection of oils on clearance tonight. They had QS 20w50,Havoline 20W50,Valvoline Durablend,QS 10w40 high mileage, etc... I can't remember all the brands and viscosities they had. How is it at your local Wal-Mart? What do they have? I was looking for QS 5w30 or 10w30 High Mileage on clearance, but no dice.