I've got an '07 F350 6.0. I love it but the mileage isn't what I expected. Diesel costs more than gas in my area. Oil changes are over $100. But I didn't buy it for economy so the cost doesn't bother me.

I love the way it tows. I also have my 900lb Trailblazer 302 Air Pak in the bed and don't even notice it. Like armer said...... If you've always wanted one, you won't be satisfied until you've tried it.