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nhtope's avatar
nhtope
Explorer
Sep 07, 2013

Yellowstone Trip

Hello, My family and I would like to take a trip from Wisconsin to Yellowstone next summer with some stops along the way. I am towing a Wilderness 3150ds 35 foot travel trailer weighing in at about 8,000lbs loaded. We tow with a 2013 Chevy Silverado 4x4 2500hd gas (3.73). Right now I am only getting about 7mpg. This gives me a range of 3 1/2 to maybe 4 hours before needing gas. That is in Wisconsin. I have never traveled out west. Should I consider a bed style external fuel tank? Would downsizing the trailer help? IT's not that I want to drive for 6 hours straight, but I don't want to be stranded. I feel like the mountains will cut that fuel range even more. Any thoughts would be great. I have considered downsizing to cut some length. 35 feet can be long in some places. Thanks

23 Replies

  • Yes, that is a long tt and yes, your mileage probably will suffer a bit in the higher elevations, but I personally wouldn't change units just for that reason. If you plan your trip carefully you can get there without any major challenges or extremely long distances between fuel stations. Many units with mileage worse than yours go there. Private cg's well probably be your best bet for that size. Have a great trip!
  • No, no and no. No need to change anything. Do you drive for 6 hours without stopping? If not, just make one or more of the stops fuel stops as well as rest stops and you will be fine.