I was in Walmart today and see they have Mobil 1 15W50 oil for about $22.00 for a 5 quart jug and was wondering if it would be a good oil for my 08 Hayabusa? First I know it's not the motorcycle oil, it's not a energy conserving oil so it doen't have the friction motifiers so no clutch problems, it meets the API rating SM/SL. And it's less that half the price of the motorcycle specific oil so I could change the oil twice as often for the same price. I know a quite a few people who run 15W40 Diesel oil in there bikes and love the oil . I was thinking this would be one better yet. Just a thought. Thanks for your advice in advance.