What is it again that is possibly un-safe with the use of full synthetic ? Is it just, don't use it too early, clutch problems ? I have 10000 on the clock now. I was going to change oil for the Winter. I'll start it once a month. I'll ride it once or twice till spring. Then, soon after, I'll change it again, April or May. Should I then use full synthetic ? I used semi-synthetic on second change. Found it just....expensive. Now I use Yamalube, 1040. At 10250, or there about, it'll be the fifth oil/filter change . I don't want to leave dirty oil in there over Winter. Then start er up with that dirty oil.
What do you folks think of magnetic drain plugs ? And , what about the synthetic question, the weight question ? This stuff is important, no ? Remember the Castrol ad ? Motor oil is the life blood of your engine.