Hey- still pretty much a noob here- quick question. Does BMW make a syn gear oil. I ordered an engine oil change kit and a quart of syn gear oil from A&S motorcycle accessories and they sent be BMW engine oil but the Syn was 75w-140 Castrol Motorcycle Gear and Final Drive Oil?? Does this sound right? I assumed i would be getting genuine BMW Syn?? Maybe I am totally confused and BMW doesn't make a syn motorcycle gear lube??