Just a heads up. I picked up (7) qts of Valvoline VR-1 20W-50 at Advanced Auto for 75 cents a quart. It was still priced at 6-7 dollars/qt on the shelf, but when the guy rang it up it was 75 cents. He said they must be clearing inventory but he didn't know how long it would last. I told the guy it felt like I went back in time 40 years!