Recently done some mods to the truck as you see in sig. , haven't really had a long road trip yet, mostly running around town , but , from you guys running similiar mods; it seems I am getting the better mileage with the unit set at stock setting(0) versus mileage setting (1), or higher (which I would expect to use more fuel), was wondering if same is true for others and on the road for a while whiich setting is most economic? I am wondering now running basicly empty, the test will be hooked up to the trailer. Appreciate any imput...