Global Fuel Economy Initiative (GFEI)

GEFI logoThe Global Fuel Economy Initiative (GFEI) – a partnership of the International Energy Agency (IEA), the United Nations Environment Programme (UNEP), the International Transport Forum of the OECD (ITF), the International Council on Clean Transportation (ICCT), the Institute for Transportation Studies at the University of California-Davis, and the FIA Foundation – works to secure real improvements in fuel economy and the maximum deployment of existing fuel economy technologies in vehicles across the world. The Initiative promotes these objectives through shared analysis, advocacy, and the Cleaner, More Efficient Vehicles Tool for in-country policy support.

Fuel economy developments over the decade from 2005 to 2015

While the average fuel economy of vehicles continues to improve, the rate of progress has slowed in recent years. An IEA/GEFI report, International comparison of light-duty vehicle fuel economy 2005-2015, looked at fuel economy development in the 2005-2015 decade for the Global Fuel Economy Initiative (GFEI) and it shows that average amount of fuel required to travel 100 km improved by 1.1% in 2014 and 2015, down from 1.8% between 2005 and 2008. This is consistent with an increasing shift globally towards 'crossover' vehicles (medium-sized SUVs and pick-ups) that strengthened since 2010.  It also reflects changes in the composition of sales globally, including increased sales in non-OECD markets and shifts occurring within the OECD, and comes in conjunction with a major change in comparison with the first half of the last decade: since 2014, non-OECD countries have achieved faster fuel economy improvements than the total of all OECD economies. 

International comparison of light-duty vehicle fuel economy 2005-2015

Published: 17 August 2017

The joint IEA/GFEI’s latest fuel economy benchmarking study examines global progress in improving average fuel economy over the decade from 2005 to 2015. The new report is unique in its scale and comprehensiveness, covering more than 80% of the global vehicle market. It extends and enhances previous research that GFEI has published regularly since 2011 by including a longer time series, an updated in-depth exploration of fuel economy drivers in 17 countries and a new section on trends in vehicle prices globally.

Download previous IEA/GEFI reports:  20142013 | 2011

Related material:

Workshop on heavy-duty vehicle fuel efficiency regulations (2015)

Fuel Economy Policies Implementation Tool (FEPIT)

Fuel Economy Policies Implementation Tool (FEPIT) allows countries to analyse potential outcomes of different policy options based on the characteristics of their vehicle fleets in a range of different scenarios.  It also aims to support countries as they seek to promote fuel economy policies.  FEPIT was developed by IEA and introduced to GFEI partners during the GFEI global training event held in Paris on 11-12 June 2015 in conjunction with the IEA Energy Efficiency Training Week, drawing together policy makers and technical experts for two days of practical information-sharing and networking.  The FEPIT is available for download and is accompanied by a user guide and a methodology report

Technology Roadmaps and Policy Pathways

The IEA has developed and regularly updates a series of global, low-carbon energy technology roadmaps which identify priority actions for governments, industry, financial partners and civil society that will advance technology development and uptake to achieve international climate change goals.

Browse all Technology Roadmaps >

Technology Roadmap: Fuel Economy of Road Vehicles

Published: 19 September 2012

This roadmap explores the potential improvement of existing technologies to enhance the average fuel economy of motorised vehicles; the roadmap’s vision is to achieve a 30% to 50% reduction in fuel use per kilometre from new road vehicles including 2-wheelers, LDVs and HDVs) around the world in 2030, and from the stock of all vehicles on the road by 2050. This achievement would contribute to significant reductions in GHG emissions and oil use, compared to a baseline projection.

Different motorised modes are treated separately, with a focus on LDVs, HDVs and powered two-wheelers. A section on in-use fuel economy also addresses technical and nontechnical parameters that could allow fuel economy to drastically improve over the next decades. Technology cost analysis and payback time show that significant progress can be made with low or negative cost for fuel-efficient vehicles over their lifetime use. Even though the latest data analysed by the IEA for fuel economy between 2005 and 2008 showed that a gap exists in achieving the roadmap’s vision, cutting the average fuel economy of road motorised vehicles by 30% to 50% by 2030 is achievable, and the policies and technologies that could help meet this challenge are already deployed in many places around the world.

This report has been released in tandem with another report the Policy Pathways: Improving the Fuel Economy of Road Vehicles - A policy package, which describes the policies needed to deploy more fuel economic vehicles in more detail.

Policy Pathways: Improving the Fuel Economy of Road Vehicles - A policy package

Published: 1 October 2012

The transportation sector accounts for approximately one-fifth of global final energy consumption and will account for nearly all future growth in oil use, particularly for road vehicles. The right policy mix can allow countries to improve the fuel economy of road vehicles, which in turn can enhance energy security and reduce CO2 emissions.

Improving the Fuel Economy of Road Vehicles highlights lessons learned and examples of good practices from countries with experience in implementing fuel economy policies for vehicles. The report, part of the IEA’s Policy Pathway series, outlines key steps in planning, implementation, monitoring and evaluation. It complements the IEA Technology Roadmap: Fuel Economy for Road Vehicles, which outlines technical options, potentials, and costs towards improvement in the near, medium and long term.

The Policy Pathway series aims to help policy makers implement the IEA 25 Energy Efficiency Policy Recommendations endorsed by IEA Ministers (2011).

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