if it helps, my bike did a round trip of 200miles and i used 1ltr of oil, she was toped up before ride and then during and at the end, total 1ltr, dont forget the tanks bigger than it looks, when i bought mine i though id run dry but found that the little tank at the side is the tip of the iceburg so to speak...there is a bigger tank under the tank that the little one feeds.
cheers