Actros vs Range T

Iveco on general haulage so weights can vary alot as is 1 of the mercs, iveco is getting just under 9 but when it went out on containers it was achieving 9, but this lorry has always been in the power mode setting so i dont know what the difference woukd be if it was left in eco also the mercs are only 450’s so i dont know what a 480 stralis fuel would be like in comparison