^^ Truth. if you are doing sole city driving, 400 on a tank w/ AC blarin is pretty good. I am doin 80% hwy driving, and when I go to lunch, I park the truck and go in rather than sit and idle for 5-10 minutes. THAT has saved me tons in lost mpg.
90% of my driving is city so i guess what I'm getting isn't too bad. The only time i get to highway speeds is the last 5-10 mins of my drive home in the afternoon, or if i go out further than the places in my neighborhood.
biodiesel? super cheap... or make it a veggie burner- when you start it use diesel and once it gets warm you switch it to your other tank that holds used veggie oil and use that, when you get to where your going switch tanks then shut it down.
