Dyno's regularly deliver different results due to ambient temperature, humidity and other factors.
As for fuel economy i can only post my own accurate figures, there are so many variables, the biggest being the human that is driving.
I have a CU2 Auto and keep a spreadsheet on all fuel used, 99% of the time I fill at the same pump so the car is on the same angle, and fill until fuel is visible in the filler neck. After 10,955kms i have an average of 7.33 L/100km.
If I discount the first tank from the dealer ( i am sure it was not filled completely) best recorded is 6.9L/100km, worst recorded is 7.65L/100km.
Caltex Vortex 95 fuel used exclusively except for 1 tank of Mobile 98.

