Ok I'm disabled and its not all that easy for me to take off the side panel (around the loader) on my Kubota L5040 to get to the fill plug. However after I've drained the oil and removed the oil filter there is a nice hole there where it would be much easier for me to fill the crankcase with a funnel and tube through filter hole. I can't see any issue with doing that...Fill it up till its right on the dipstick...screw on new filer....run a bit.......check oil level and go. Any issues with doing that other than that I might need to top off the oil level and would have to do that with the fill plug in the end anyhow?