Got two on the cars, one on a C/7 CAT, and the 4th on an Onan QD. Zeeerow spillage..
IMO... the assumption that someone is going to come along and randomly kneel down to see if there is a valve to open under the vehicle and open it is plain silly.. how are they going to know it's even there unless you've pi$$ed off the neighbor who has seen you use it? And after that, anyone that cannot see and/ or smell 1-5 gallons of oil on the ground has attention issues. That's simply not a vandal magnet. Having it protruding straight down and exposed is obviously an issue