LOL i had mine on the subframe, not under the seat, easily filled in under a minute. Pull off breather, attach bottle and squeeze hard, pull off and re-attach breather. No mess at all, if you pull off the bottle squeezed it's sucking up oil back in? As the scottoiler cleans your chain as it oils, no need for cleaning either. 1 min every 5-6 hundred miles, versus oiling and cleaning which takes 20-30 if you do it properly, you make it sound a lot harder than it is Duc!