Guide :Electrical Supplies : Onan Portable Generator - 4000 , Model# 5500
Onan 4000 RV Generator - where is the oil drain plug?
Where is the plug to drain the oil on an Onan 4000 Generator? My manual just has an arrow pointing to the bottom, but there is no access. I think it looks like it is near the dipstick, but it is a female plug. If it is, what kind of tool do you use?Thanks - LXILABS.