As you can see the trip didn't end well. My fuel averages on the way to Boise was great, got about 23MPG. On the way back with a car and A/C on I averaged 19.6MPG. I also had the exhaust brake on, the truck didn't seem to like it. I noticed going down-hill with the exhaust brake on if I were to brake even more, the truck would over rev to about 3500 RPM until I blipped the gas. Maybe I was using the feature wrong. Other than that the truck did as I had hoped it would. climbing hills at 2000RPM, handled all the windy roads. Tranny temps were pretty decent, its was about 100F out side. Temperatures never went past 212 while climbing. I even impressed a few 2500s one the roads at gas stations. But, unfortunately I got another DEF message about 50miles from my house. I for the life of me couldn't get it to clear, so off to the dealer once again.
I love to hate this truck, and hate to love it!