HOW FAR TO FUEL? We have waypoints marked along our route at locations where we can likely get fuel. But as we are approaching a fuel waypoint how do we answer the question of whether to stop or to continue to the next fuel waypoint? There's no simple, quick way to answer the question "how far is it between these two points on this track" using the GPS. So what we've done is mark fuel waypoints with their mileage relative to the start point, as in FUEL 412, FUEL 433 and FUEL 470. That allows us to know how far it is from the approaching fuel waypoint to the next fuel waypoint - 21 miles and 37 miles respectively in the example above.