Here u go,
On the down trip 53.8 Mpg on the trip just a shade over 3.5 hours and 213 miles, the crusie was either 78 or 80 all the way with an exception of 5 miles on the M74 and when we got go the M602 then into Manchester
On the up leg 48 Mpg same cruise setting's with even less slow traffic. the round trip was 51 mpg... average speed down was 61 up was 67. In total 445 clock read 90 miles left in the tank