There is a great new $5 off 5.1 Qt. jug or ANY 5 Valvoline Motor Oil Jugs coupon available! This coupon says Kmart on it and that may be because 5.1 jugs are hard to find? I’m not exactly sure! The jugs that I’ve seen at Walmart are only 5-quart, so this coupon will not be valid on them. This coupon is a manufacturer’s coupon, so you can use it anywhere. My suggestion is to carry it with you when you shop and look for the 5.1 jugs. Changing your own oil is much cheaper than taking your car in, so good luck finding your savings!