OK, back to the MPG...
Manchester and back yesterday 125 miles each way...
On the way there (all motorway except for the first 7 miles and the last 7): 52.7, cruise set at 78 (real 75) normal mode - traffic mostly quiet except for about 4-5 miles on the approach to Mcr.
Return, 55.5 (in ECO mode), cruise set to 78 again, traffic heavier (average speed approx 10mph lower)...