I don't know how some people can change oil without a drop of it on the floor. I don't have the ability or is it a skill? I know a guy who will paint whole house and has no drop of paint on himself or floor. I would be covered. So changing oil and hydraulic fluid is a challenge. Specifically, when filling empty containers (buckets) with used fluids I always spill some. I am thinking about replacing the drain plugs with something like a hydraulic coupling automatic valve that would open when a hose is attached to it. I was looking at Fumoto or EZ Oil but don't like the lever operated valve because it might open for example by a branch catching on it. Then I found No Spill
Drain Valve and Oil Drain Products and Parts | No-Spill Systems . It is somewhat expensive so I would ask what do you guys think? The only thing that somewhat worries me is the material. I am afraid it would deform and leak when smashed on something. I would prefer steel or stainless steel or have a guard integrated into the plug.