While your underneath your coach and you have all the oil lines and
filter off. Take a minute to remove the oil filter adapter, take a look
at the size of the oil passage between the adapter (aluminum) and the
engine. You will see there is very little clearance for the oil to
flow. I looked at several and they were all pretty small, about the
size of a screwdriver point (flat number 2). I had the machines drill
and dress mine and I am sure I am getting good oil flow and no false
sense of security in the oil gauge. Chuck
filter off. Take a minute to remove the oil filter adapter, take a look
at the size of the oil passage between the adapter (aluminum) and the
engine. You will see there is very little clearance for the oil to
flow. I looked at several and they were all pretty small, about the
size of a screwdriver point (flat number 2). I had the machines drill
and dress mine and I am sure I am getting good oil flow and no false
sense of security in the oil gauge. Chuck