Ive been ordering oil from walmart.com for a while, but browse the aisles when Im there. For the last several months, the Supertech conventional selection has been unusually sparse, while the synthetics are usually stocked well. Also, the name brand dinos are stocked well too. Tonight there was 4 gallons 20w50, 1 gallon of 10w40 and 1 gallon of 5w30 HM. I know that there are so many variables involved in the supply processes of a huge retailer, but maybe the world has gotten the message that your engine will last just as long on SN ST dino that it will on any other oil?