I don't get it. Why is it so "great", but so cheap? Everyone seems to love it. It has a ton of approvals. So why so cheap compared to other brands? I put great in "" because obviously that is opinion based. But seriously. As all of you know it's currently in my car. I want to switch it out. But I can figure out why it is as good as it is for such a cheap price. I mean it seems to be better than the higher priced oils in most if not all categories. So how come Mobil can afford to sell it so cheap while others charge so much?