I went to the local Auto Zone today after seeing this, some oils that were marked a buck really weren't. I guess I could have gave them a hard time but the local guy didn't have much to do with it. They had 10-30 Castrol Syn Blend oil for a buck, and Valvoline Syn trans fluid for a buck, I bought 17 bottles of the tranny fluid, but when they rang up the oil, it wouldn't let them, they made a couple of calls, kept trying to ring it up, and finally were told that sale was a mistake, it was really on sale for 6.99, for that price I didn't need any. I don't usually run that oil in anything but for a buck I would have. they had 23 bottles of it to. They had a few other oils marked at a buck, but were sold out on those.