Fuel efficiency is a function of the vehicle itself (eg engine size and fuel type) and how it is operated (eg driver behaviour and loading).
Improved vehicle fuel efficiency in New Zealand is encouraged through two key initiatives operated by the Energy Efficiency and Conservation Authority (EECA):
All light duty (< 3.5 tonnes) vehicles sold in New Zealand must display a fuel economy label (external link) , which outlines the make, model, energy star rating, estimated cost per year to run the car and fuel economy in litres per 100km. Fuel economy for electric cars is shown in kilowatt hours per 100km. The performance of individual vehicles can be compared using either the vehicle fuel economy tool (external link) or the RightCar website (external link) (which also has safety and air pollution ratings). In addition, EECA have a total cost of ownership tool (external link) , which enables people to compare electric vehicles with petrol or diesel vehicles.
The Heavy Vehicle Fuel Efficiency Programme (external link) targets heavier (>3.5 tonne) vehicles and is oriented towards bus and truck fleets. It provides expert advice on vehicle selection, tyres, biofuel options, monitoring and measuring fuel use, fleet management and driver behaviour (including advice on driving training). Further advice is available in the Transport Agency’s Heavy vehicle selection guide.
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