Stop in for a cup of coffee

It gets sucked out of the filter, thru the Carb and burns off.
K&N Air Filter Review - Debunking the Myths (and why OEM is better)
No, it doesn’t. Only excess liquid droplets of oil can be sucked off. Oil impregnated cotton fibers won’t release the oil and will retain the dirt passed by them until they reach their filratation capacity.

Oil does not evaporate and won’t be sucked out. It is physically impossible.