I brought 6 bottles of Phillips 66 trop artic 5w30 synblend to return. I didn't have the receipt. Well, they scanned one of the oil bottles first to see if they carried it in stock. It rang up. Then to my surprise, the girl opened one bottle and started to sniff the oil. I said, "why are you sniffing the oil?" she said, "I have to make sure every oil bottle returned is actually oil" I said, "look at the bottles not one of the tamper proof rings have been twisted off" she said, "the manager said I have to, I'm just doing what I'm told". She opened all six of them up. When it passed her sniff test, She gave me a refund of a whopping $8.78.