I have a bottle of this laying around and I think the bike is due for an oil/filter change. As far as I can tell there are no friction modifiers (nothing marked on the labels, no energy saving stamp either). Has anyone used this stuff? 15w-40 I'd rather not go out and buy some expensive 'bike' oil if I don't have to. The bike is an '05 vtr250 so nothing too high end but does have a high red line.