Managed to get 43.8mpg on the way to Nottingham between 9am and 1pm but on the way back dropping to 41.5mpg between 4pm and 7pm, why the abnormally? still way from 47.1mpg got in the summer.
Well, I think if you look at your description you see your answer. Its the sun. We all know that everything orbits the Sun due to the Sun's greater gravitational pull. So, up to 12:00 the Sun is rising so the pull of the Sun (in the sky) is increasing and your car effectively gets lighter. Then in the afternoon, as the Sun moves down, it reduces and your car gets heavier. And obviously in the summer the suns up longer - so lighter car and better mpg.
Other likely reasons,
he was going against the rotation of the earth in the morning so the destination was being brought toward him.
There was a greater downhill potion of the journey in the morning.
He was lighter in the afternoon due to the fuel used and him having dispensed with his breakfast.
there was the northern wind blowing at around 4.30pm as in the morning driving east on A52
had to say it was a brilliant sunset yesterday along A1(M) south and A14 east through Huntington and Cambridge @ 5.30pm. where is the sun today?
I still didnt managed to get 43.8mpg started out, not more about 41.3mpg, coming back, I thought the engine management had developed a fault.
That £50 of unleaded petrol for just 290 miles. when I got back have to fill in another £30, all gone to the government.
Then explain why you read the ****** Daily Mail.