Making final selections before ordering our first ever RT! We like the 2.5hp 4-stroke Yamaha OB for the dinghy because it's lightweight and has a built-in fuel tank, but I can't find a lot of info on fuel consumption. I don't think we'll need to go fast, but I'm wondering how far/how many hours we might be able to travel on a tankful. I think it only holds about 1/4 gallon from what I can find.