I just got back from ShopKo. They had Valvoline 10W40 oil, SG rated, for $2.99 per quart. The older syle bottles were absolutely filthy. Somebody must have decided to clean out their garage by scamming the store with a return of 10 year old oil. I pointed it out to the clerk, and she took a bottle to the manager. I don't know if they pulled it off the shelf or not. Needless to say, I didn't add it to my stash. Some people . . .