and nb i did not call anything a general truth known to all including myself what i said was that you and i both know there are auto parts bearing phrases like meets oe specifications that was a bit of a guess on my part as regards your knowledge for all i actually know you've never set foot in an auto parts store but since you're having this conversation i assumed perhaps rightly and perhaps wrongly that you have seen such auto parts packaging i have but that's exactly my point the verifiability rules of wikipedia mean that we don't get to plug in our own knowledge as fact on the assumption that it is universal or a general truth known to all as you put it assertions in articles must be backed by reference to reliable sources no matter how sure we are of what we personally know