Just getting started on a 87 Honda TRX350D Fixer upper that has been sitting for years. Ordered Oil Filter, Fuel Filter, Air Filter, Battery. I read on the Forum that the oil has to be Wet Clutch Oil. Looking at the Manual it calls for 10-40W Honda Four Stroke oil or equivalent. But the Spec calls out SE or SF which is standard car 10-40W. Do I need to go buy special oil? I have 10-40 in my garage. It cranks fine. Plastics are in rough shape. Coasted it down my driveway and seemed ok. Like I say, just getting started.