These models are lubriated, but meant to be done during a service. The electronic circuit board doesn't need oil, but all moving joints, gears, hinged parts, where metal move against metal, could do with some kind of oil. It will make the machine turn run lighter and smoother. The trick is to get the covers off to reach the part, and to oil sparingly, neat with out excess, but enough to reach the inners of noocks and crannies. Except for the step motor and no cam stack, the moving parts are much the same as on any new or vintage sewing machine. The only parts not taking oil can be nylon or loosely clipped together parts, but actully, most of these to recieve some kind of lubtication during a service.