This is probably going to get highly complicated but all I really and looking for is which is a good (not necessarily great) brand oil to use that will last for a riding season of around 5000 miles give or take. Bike is only used for street riding and going to be used for commuting to work (yay boston traffic). Currently past the break in period and basically doing the coming out of storage oil change. The only thing I run in anything I own is synthetic and that is due to seeing a quite a few sludge pans from people using non syn in a vehicle that requires syn on top of it being the incorrect grade for the vehicle, which try telling people that because they saved $20 for going someplace else they now have to have a complete rebuild or a long block at about $7600 (engine only no labor). Leaning towards mobil 1 4t, liqui moly, or elf.