11-04-2014, 02:46 PM
Pretty much all been covered, but more detail is needed as to your driving, it's less about revs, more about load. On a motorway journey I can get over 70MPG, around town I struggle to get to 50MPG, regardless of how I drive. That's also due to the journeys being short, and the engine not getting up to temperature where it is more efficient.
Diablo Meridian HDi - 125bhp - 73.0MPG - Halfords Wheels