is it possible to add a second fuel tank

westtexus wrote:
Really, I should fill with fuel and water, load like for a trip, and weigh it. Compare to Max weight rating, go from there.

Good plan. Make sure you have chairs, grills, clothes, food, beverages, coolers, ice, everybody riding in it including pets, etc., too when you weigh. And don't forget to add in for the holding tank(s) in case you don't have an opportunity to empty them before leaving the campground.