Good point Mlytle, And true. I have poured straight from the bottle many times as well. And always just pour straight from the bottle in between oil changes to top her off. It can be tedious and a little unnerving pouring 4 quarts into the "hole" like that. My last oil change was from one of those 5 qt. jugs. I guess the disposable funnel that screws in was born from using the 5 quart jug. The screw in funnel made it much easier for me. YMMV :dunno2:
BlueK11LT. I have often used the cut off top from plastic bottles as a disposable funnel, but just recently discovered that they actually will screw into the filler hole of a K bike firm enough to hold it in place while you focus on pouring oil.