Be sure to wipe the plane down after each flight. Get all the oil off it. Two reasons. First, the oil has weight and it flows aft towards the tail. If the plane is marginal in the CG, this will shift it during the day to the rear, and this can be a disaster.
Second, assuming the plane lasts all season, the oil will creep into the darnedest places and cause glue joints, to become loose, wood to swell and gain unwanted weight, hinges to pull out.
