It is time for an oil change in my wife's GTP, and I noticed Mobil 1 was $.50 cheaper than Wally World when I went in Target last Saturday! I noticed a couple of weeks ago the price per qt. was $4.54 @ Target. I'm glad I waited to buy some. I'm going back for more for my Formula. I just wish the 5 qt. jugs were 18 bucks again.