It looked like a K-Mart in their car section. They had a ton of SL Pennzoil, a bunch of quarts of 10W40 and 20W50 SJ rated Pennzoil (pictures below), and also some Formula Shell High Mileage oil (which I've never seen before) I thought it was interesting that the older bottles of Pennzoil had a dark film inside of them (additive separation perhaps?):