I would need a better reason to take the time and drive than proving things on the internet. The city driving would hurt the average. It also gets bad mileage in heavy winds. I did a trip to Wendover and back when the winds were crazy and got 15. The route i take somewhat often is 40 miles each way to slc and back to utah county about 75 mpg and both the digital meter and hand fill calculations put it in the average of 19, some trips can be 20 or 18. The biggest difference truck to truck is tires. I run LTX and they roll easy. If i had all terrains or mud terrains i would lose 2-3 mpg. My truck had 70k miles put on in a little over 2 years by 1st owner so its well broken in. I also take my dmax van on similar route and it also gets 19 mpg in a 2wd van chassis. Pretty impressive for both in my opinion.