Oil slosh

Yeah oil froth is a big concern with bikes, that was my original reason for asking. Just trying to find out where full actually is, seems like it should be a box instead of a line on the dipstick, you got 'full', 'full full', and 'yup, that's full'
I really don't hoon around, I baby the hell out of this car, but on the expressway, even giving 3 car lengths some ahole will make me slam the brakes hard enough to get that light to flicker