Scania R470 Fuel Consumption

My old boss at Stowmarket runs a few 6x2s on tilt work from Felixstowe, and hes not getting lower than 8.8 on a bad day. I once drove one for a few days while my 144 530 was in for mot, and it was a fantastic truck, 42 tons from Deeside to Felixstowe without changing down for hills.