This is the 13th year that I have changed oil on the Mary Ellen's twin 40hp Hondas. I have tried every method to try and drain the oil without making a mess. No matter how careful I was I always had a spill. This year I purchased a Topsider MPV oil pump out system. You guessed, it worked perfect as advertised. No mess and all the oil out. I just warmed up the engine and pumped it up 30 pumps and inserted the hose down the dip stick hole. It took less than 5 minutes. I highly recommend this system. One of those why did I wait so long moments.