I'm not a busa owner, yet. I use Mobile 1 in my 94 BMW R1100RS because it seems to cut down on oil consumption in hot weather. The 94 BMW does not have a good oil vapor condensing/recirculation system. The bike has 77K, hard ridden miles, and still doesn't smoke. Every 6K oil change interval, approx 1.5 quarts are consumed/added if the engine is worked hard, which it usually is.