10-11-2014, 12:03 PM
sounds about right, you'll only get more on long motorway journeys, I've had 53.5 from a 2.0 110 hdi C5 estate but that was a full tank of pure motorway at 56-60.
need a part number? http://public.servicebox.peugeot.com/ and http://service.citroen.com/ will sort you out.