A quick Heads Up regarding oil changes
My first experience with the filter gasket issue was 30+ years ago when sb Chevy motors used a canaster filter. The o-ring fit up into a groove and needed to be picked out before installing the new one. I was in High School and working at the local service station one one of the other guys did an oil change and put the new o-ring ontop of the old one and did the same thing. The next one was with a buddy of mines brand new Malibu he got for a High School graduation present. Took to the local station for it's first oil change. They did it and he didn't get any smoke (no headers for it to drip onto) and siezed the engine. The service station had to buy him a new engine to replace his new engine.
Since, I have always checked and wiped the the gasket surface and have found the oil ring stuck to the block on a few occasions. But as I stated in my original post I got complacent yesterday and was worrying more about not dripping oil all over the headers and see what it got me!! ;)