This is very high (17.9 L/100km). My 2.7litre petrol Hiace (2017 model) uses between 11.5 to 12.5 L/100km on long distance runs. Sits best at about 90-95 km/h and guzzles the fuel at 110km/h. Fuel tank size is 70 litres, so I normally get 550-600km per tank.