How’s the Mileage Going?

Ok so hows the mileage going…

Well I have now completed several Journeys averaging over 100MPG ( not by much.. like 101-105MPG.

However it is really Challenging keeping it above that for anything but a long journey.

I have covered over 6000 miles in the car now and have averaged 79.4MPG Overall.

Biggest killer is being stuck in night time traffic. I would love to kill the engine at these point, but the lights go the the side lights only. I think this would be a bit too distracting for other road users unfortunately.

Does any one know whether this a a fuse box fix or are they controlled by some other management system?