It appears that we have an oil leak from the oil filter housing, the oil pan, or somewhere else. I tightened the bolts all around the oil pan all the way around the engine, except for 2~4 I couldn't reach. Some is leaking on to the exhaust pipe. Some is leaking from somewhere above the oil filter, falling on the oil filter, falling off on to the frame, then going to the ground. It is a 1984~6 ford econoline van that was converted to a motor home. Thanks for the help. Have an alfa for your time.