Does anyone know if the oil pump is variable rate? In another post GLS states that the oil rate should be 60-80:1 at 6000 to 7000 rpm. I would asume that to mean that at lower throttle, the rate would be closer to 100:1 and at WOT it would be closer to 50:1 . I know for example that my Merc. Back Max outboard is 100:1 at idle and 50:1 at WOT. I have noticed that peoples oil usage varies and it seems to show a relatinship to the way that they are riding. I just completed a ride and my oil use was about 85:1 but almost all of the riding was at 5000 to 6000 rpm. Thats still lean but if the pump is variable rate then maybe it still isn't critically bad. Any thoughts?