I changed the oil in my Electra Glide Classic ,went for a ride and checked the level. Was fine. Came back in the morning and it had a oil spot about 3inches across. It was under the oil filter area, I thought maybe it was old oil that had spilled on the frame and then just dripped down Put some cardboard under it and it had a very small drip. Started it up and really didnt see any oil coming out . Put new cardboard under it and there is another small drip mark. So do you suppose I should tighten the oil filter even more or take it off and clean and check it or maybe buy a new filter and just replace it? Thanks in advance for your help. I have a trip in 4 days and dont want any problems.