Today for the 3rd time I've found my oil filler cap up(oil all over valve cover) and almost off of the valve cover completely. This leads me to believe "blow by" be the cause...
However, the cap doesn't have ANY resistance to put on or take off like there is no seal whatsoever. And by ANY I mean even with the car off the oil filler cap is lifted a little by the force of the breather tube.
Someone show me the light! Is there a stupid seal missing from the cap?