Is it even possible? I've used the Harley Davidson oil filter drain and I've also used the 2l Coke bottle technique, I always seem to make a mess. Any cool ideas out there? There have to be some techniques that work.
So far this has worled well for me , You can make it out of Sun laundry detergent bottle , Leave about 1/4 lip all the way around . See pictures. Last time I did it I did not make a mess.
Have fun , ride safe!