Irun a Sonictronics pump on a DLE20 with an 8oz smoke tank and it will last about 45 sec full on where as the planehas a 10 oz fueltank and willfly 15 min. I only run the smoke on maneuvers. Getting the flow controled correctly will minimize the oil on the plane and most of it is only on the bottom of the fuse and staband cleans off easily. Not at all like glow slime