It seemed to be more like halfway off. Feel free to duplicate the experiment on your own car and report the findings.

 

Let's let Johnny tackle that one

 

.... I usually bottom the filter and then back it off so no double gasket action for me

 

I did the same thing on my girlfriend's dad's Kia Sportage. Dumped a good quart on the driveway before I realized WTF I did. I found out a few days ago while changing the diff fluid on the S2000 that I've been driving around for the last year with two crush washers on the diff's drain plug. Apparently I remembered to install a new washer but forgot to remove the old one.

 

Well, I drove the car to work today and it didn't blow up. That's a good sign.

 

Did the same thing in my Aveo. It was dark when I put the oil filter on and I didn't see the gasket fall off. My car was idling while I cleaned up. There must have been 3 quarts on the ground before I found out.

 

This is the most common problem they tell you to check for when changing your oil!!!

 

Yes, I know. That's why it was a boneheaded move.

 

As long as I worked at my shop I've seen everyone do it once including me. Didn't double gasket, but no filter at all.

 

Every once in a while I pull over to double check I put the cap back on haha.