smoking engine

i dreamed last night that i was driving our car and tons of black smoke started to come out from underneath the hood, covering the windshield of the car and THEN the yellow oil light came on. the car was apparently way down/empty on oil. our car didnt get any damage, but it was close to melting/ruining the engine. this is exactly what my mother in law told me about her car a couple of days ago, everything except for the smoke, so thats probably where this came from..