I have a relatively new mercury 75 EFI 4 stroke engine. After I flushed (muffs) it for 15 mins at low rpms. I parked it in the garage with the tilt down. the next day I noticed a small amount of oil had dripped from the exhaust hole. It left approximately 6 inch round oil mark on the floor. The engine has only run on the water about 12 times for an hour or so over the past 24 months. I had changed the oil and lower gear oil last year. Is this normal or something I should have checked before taking it out in the spring. Thanks
