We stopped by Target tonight to look at some house stuff. I took my usual walk down the auto aisles looking for deals on waxes, oil etc. and found Penzoil for $1.19/qt on some sort of temporary price markdown. I bought five quarts of 10W-30 to use with my Auto-RX treatment next month. It's no $0.68/qt Havoline deal, but it's a darn good price!