It's nice to see that we have a support group for our disorder...
Hi, my name is Brad, and I'm an oil addict.
I too have a weakness for browsing the shelves of motor oils. I swear the employees of Walmart and AutoZone must think I'm some kind of nut. I'll go into the store, spend 20 minutes looking at and reading the bottles, and then walk out buying nothing at all. They must think I'm crazy (which I am BTW).
Before I came to this site, I had never before known a person that so carefully thought out their oil changes, doing research after research, reading product data sheets, looking over oil analysis, etc, just to do something as simple as change my oil.
Just for fun, sometimes during my lunch break I'll call up different Ford dealerships and ask them what oil they use in their oil changes... You'd be surprised at some of the responses I've gotten. One service advisor said they use a 0w50 oil (ahh, yeah, ok). I asked why they used that oil, when Ford recommends 5w20. He went on to "educate" me that a wider viscosity oil will perform better, because when it's 80* out, then it will act like a 20weight; when it's 90* out, it will act like a 30weight, and so on... The funny thing is that I know for a fact that that dealership uses 5w20, but the service advisor has absolutely no idea what he's talking about.