Got my 2015 3051S in Ohio and live in Oregon so I got a good test of it on various roads and conditions bringing in home. Left the wife home to take care of the dogs and 10 puppies and went by myself. Came home by way of the Black Hills, Devil's tower, and Yellowstone.
So here is the breakdown by roads and conditions:
Lakeview OH to Ottawa IL All back roads and small towns through Elkhart (stopped at the factory) until Gary IN the toll roads First leg 370 miles MPG 8.22
Ottawa IL to Fort Dodge IA Freeways and thunderstorms 62 to 63 mph with cruise control on all the time Second leg 337 MPG 8.61
Fort Dodge IA to Plankton SD Freeway to Sioux City and then detour through Nebraska on the Outlaw Trial because freeway closed by flooding. Back roads from Sioux City to Plankton. 60 to 63 with cruise control on all the time. Third leg 322 MPG 8.85
Plankton SD to Hermosa SD Freeways wind, thuderstorms, rolling hills, and the first time I have ever encountered 15% Ethanol gas ( guess that is one way to get rid of all that GMO corn in South Dakota) Was trying to do 70 mph because speed limit is 75 and truckers were running over me. This is where I learned do not use cruise contriol all the time. It would shift down and go as high as 3500 RPMs so new strategy was come to a hill turn it off and keep the rpms to 2000 to 2500 and let the speed go where it wants. Some hills down to 45. Fourth leg 279 miles MPG 7.00
Hermosa SD to Gillette WY This was the Black Hills, Custer State Park, Crazy Horse, Mt Rushmore, Devil's Tower and so on. Hills, stop and go, and lots to look at. Fifth leg 264 MPG 9.09
Gillette Wy to Greybull Wy Bighorn mountains lots of hill and lots to look at. Speeds varied up to 60 Highest pass I went over was 9666 feet. No problem with power on hills just stayed between 200 and 2500 rpms. Sixth leg 200 miles MPG 9.11
Greybull WY to Rexberg ID This included all the way around Yellowstone Park max speed limit was 45. Hills a lot over 8000 feet. I drove the roads that are now closed in Yellowstone because the road is melted 160 to 165 degrees three weeks before they closed. Seventh leg 407 miles MPG 9.55 Also in Greybull the gas pump said high altitude gas.
Rexburg ID to Boise ID Good mostly flat roads 55 mph on cruise control. Gas was real no Ethanol said so right on pump and was $3.659 a gallon Eighth leg was 321 miles MPG 11.07 We need real gas back in this county Ethanol lowers gas mileage.
Boise ID to Damascus OR (home) Freeways some hills. 55 mph on cruise control retired last November so why hurry it does not make that much difference in total time and you get to see more. Final leg 429 milkes MPG 9.59
Total trip was 2930 miles with average MPG of 8.93
Bought from a great dealer with absolute great staff from sales to finance to techs showing me everything for hours, spend the night there in my RV and next morning more questions and training, Full tank of gas and propane included at no additional cost. free startup kit with high quality items (not the usual cheap things), best price I could find in the country, and warranty department has been absolutely wonderful. Working on getting the parts from at the time I inspected it on their lot and tow other items found while driving home. Alright got me a new refrigerator door for a dent (peel the protective plastic off during your inspection),they sent it to me and I put in on in about 15 minutes. Still waiting for them to get the replacement wood grain dash from the factory ( they are on back order) they made arrangements for a local camping world to change it for them. And waiting for the new dinette table because of poor quality.
All in all it was a great trip and 3051S did great on the whole trip.