Glad you made this post. Changed the oil in the 418-C yesterday. Drained the old oil, drain cap sitting on the foot rest, put the funnel in the fill tube, measured the new oil to be put in, got a phone call, went over to neighbor's house to assist him, came back, picked up the oil can - - - - stopped, asked myself "What would @Bar Nuthin do next?" Put the oil can down, looked at the foot rest, installed the drain plug and saved myself from wasting a quart and a half of oil.