I saw something I've never seen before. Last night I had some time to kill waiting for someone to meet me for a business dinner. The restaurant we were meeting at is in the same complex as a K-Mart. I've not been into a K-Mart in years, so I decided to kill some time browsing. My meanderings in K-Mart eventually took me to the very limited automotive section, and there on the shelf were several gallon and quart bottles of Esso oil. I don't think I've ever seen Esso on a shelf anywhere before, especially here in Central Iowa. Is this a fairly common oil and I've just missed it? Any good?