blue smoke, oil or fuel, maybe an amount to fill a plastic gallon jug of milk initially followed by a disolving stream of smoke maybe a few feet long. I'll have to drive it. I was following my son the other day after a road fix. (--ROAD FIX--he pressed the pedal so far to the floor to downshift that the black plastic throttle cam mounted on the valve cover passed the (trans. related) micro switch and locked the throttle wide open. --Linkage needs to be adjusted- this is a new car to us and we're sorting it out and learning--that was an easy fix. ) --Back to the smoke situation.