11-08-2014, 07:12 AM
55mpg is about the best you'll ever get from an XUD in my experience, they aren't great on fuel compared to newer diesels. I used to get about 55mpg on a 400 mile motorway run, average while running around town with the odd motorway trip was about 33mpg. The same drives in the Merc get 40mpg and 23mpg.