Just managed 49 mpg after a 495 mile run! Refilled the tank and squeezed in 10.1 gallons. Not bad for a car now on 105k, not serviced for 30k miles and with a small oil and coolant leak. A mix of motorway, A roads and London traffic. Do these engines get more economical over time?! That means I was getting well over 50 mpg at times. Mega chuffed with that