What is the average mpg on a Ford Ranger?

2002 2.5l Diesel? I'm looking at getting a new car and would LOVE one of these but need a rough idea on running costs. Any Ford Ranger owners with any knowledge on common faults or expenses would also be very much welcomed.What is the average mpg on a Ford Ranger?its not worth it just get a new one.What is the average mpg on a Ford Ranger?30mpg Just a Guess