Been to a lot of different Walmart stores across the state lately. I always go look at the oils in everyone to see what they carry. Found one store that carries it very cheap compared to P66 gas station. The price is almost half of the gas stations sell it for. $2.66 & $2.77 per quart. No 5 quart jugs anywhere. My Father in Law used Trop Artic in his Chevy pickup truck for almost 10 years & it vanished off the shelves. I believe this is what Conoco-Phillips replaced it with. He has been using Motorcraft 5w30 since I told him Conoco-Phillips makes it. I bought him 6 quarts for an oil change. I wonder if this is going to start cropping up more. First non gas-station I've found this stuff in Oklahoma.