MPG experience on the 3.0L 110 Defender
I had a P400 loaner car for three weeks while my P300 was waiting on parts and I averaged 18.5 mpg. My daily commute is 12 miles from my house to the office, with 10.5 of those miles on the highway. I also did quite a bit of city driving as well. The P400 got slightly better fuel economy than my P300, where I average around 17 mpg on a daily basis.
My lifetime average on the P300 is 18.7mpg over 16,000 miles. Best tank was 22.8mpg. I almost always buy shell v-power and I’m generally a law abiding driver. I have the expedition roof rack with a fairing, ladder and RAÍ. Running the default wranglers still.
I struggled to get to 17mpg for an all-interstate run from Atlanta to Albuquerque last month, about 1400 miles. Did it in one day, avg speed on the computer for the trip was 79. I think I was at about 16.6 by the end.
I don't know how you do it. I'm getting 16 MPG in a D90 P300 under ideal conditions. It's more often somewhere like 14 in a mix of driving. I drive quite respectfully and gently. Maybe it's still breaking in and will improve over time? I can hope, but I'm not optimistic.
This is the best I have been able to achieve after driving it over 4 years. When I first got it, it was less than 10mpg. When I tow and do 70mph it’s 4.9mpg so we do 50 mph and I get 7.9 mpg towing. Good luck.


