Principal Group Sub-Group(Note 1) Fuel / Electricity Consumption Per 100km Distance Travelled(Note 2)
V1. Motorcycle (Petrol) / 4.6 Litre/100km
V2. Private Cars V21. Engine Size ≤ 1,000cc (Petrol) 7.8 Litre/100km
V22. Engine Size 1,001 – 1,500cc (Petrol) 9.1 Litre/100km
V23. Engine Size 1,501 – 2,500cc (Petrol) 11.6 Litre/100km
V24. Engine Size 2,501 – 3,500cc (Petrol) 14.0 Litre/100km
V25. Engine Size 3,501 – 4,500cc (Petrol) 15.5 Litre/100km
V26. Engine Size > 4,500cc (Petrol) 18.7 Litre/100km
V27. Private Cars (Diesel) 10.8 Litre/100km
V28. Electric Vehicles 18.7 kWh/100km
V29. Hybrid Vehicles 8.6 Litre/100km
V3. Private Buses (Diesel) V31. Private Buses (Single Deck) Non-franchised 23.4 Litre/100km
V32. Private Buses (Double Deck) Non-franchised 58.0 Litre/100km
V4. Public Buses (Diesel) V41. Public Buses (Single Deck) Non-franchised 24.8 Litre/100km
V42. Public Buses (Double Deck) Non-franchised 65.1 Litre/100km
V5. Private Light Buses V51. Private Light Buses (Diesel) 19.6 Litre/100km
V52. Private Light Buses (LPG) 32.3 Litre/100km
V6. Public Light Buses V61. Public Light Buses (Diesel) 17.7 Litre/100km
V62. Public Light Buses (LPG) 28.0 Litre/100km
V7. Taxis (LPG) V71. Taxi (Urban) 16.1 Litre/100km
V72. Taxi (NT) 15.5 Litre/100km
V73. Taxi (Lantau Island) 16.4 Litre/100km
V8. Light Goods Vehicles (Petrol) V81. Gross Vehicle Weight ≤ 1.90 Tonnes 12.6 Litre/100km
V82. Gross Vehicle Weight > 1.90 Tonnes 12.1 Litre/100km
V9. Light Goods Vehicles (Diesel) V91. Gross Vehicle Weight ≤ 2.50 Tonnes 11.2 Litre/100km
V92. Gross Vehicle Weight 2.51 – 4.00 Tonnes 11.1 Litre/100km
V93. Gross Vehicle Weight 4.01 – 5.50 Tonnes 16.9 Litre/100km
V10. Medium Goods Vehicles (Diesel) V101. Tractors (5.51 – 24.00 Tonnes) 35.5 Litre/100km
V102. Non-tractors (5.51 – 10.00 Tonnes) 20.1 Litre/100km
V103. Non-tractors (10.01 – 15.00 Tonnes) 22.5 Litre/100km
V104. Non-tractors (15.01 – 20.00 Tonnes) 26.2 Litre/100km
V105. Non-tractors (20.01 – 24.00 Tonnes) 32.2 Litre/100km
V11. Heavy Goods Vehicles (Diesel) / 37.1 Litre/100km



  1. Definition of each subgroup is shown in the glossary.
  2. Stakeholders are encouraged to consider these energy utilization indexes as one way, but not the only way, of improving their vehicle energy performance with respect to the past. Comparisons of indicators within the same sector should be made with caution. Vehicles may be operating under different environmental and operational practices, causing different energy performance. The energy utilization indexes are derived from studies on a limited size of samples within the population of respective energy-consuming groups. These indicators should not be construed as representative energy consumption levels of the population, nor as territory-wide standards which vehicles in the respective energy-consuming groups should comply with.