United Nations Environment Programme

UNEP Toolkit



What you can do:

You can do a number of actions that will reduce your fuel use and thus your contribution to climate change and at the same time reduce your emission of air pollutants. Some of the options that are suggested cost little and lower fuel costs, whereas others will require investment in new technologies.


The most basic and "no cost" step is to properly maintain the vehicle fleet. Tool 7 provides detailed information on how to include the environmental dimension in your maintenance programme.

Driver behaviour:

Training drivers properly on “Eco-Driving” saves fuel, reduces emissions, reduces vehicle maintenance cost, and saves lives. Tool 8 provides basic information on Eco-Driving.

Fuel quality:

Always use the best available fuel quality on the market. Tool 9 provides information on unleaded petrol. Tool 10 provides information on low-sulphur diesel.

Emissions control technologies:

Greatly reduce air pollutants that affect human health. Emissions control technologies REQUIRE use of unleaded petrol and/or low-sulphur diesel. Tool 11 describes emissions control technologies for diesel vehicles. Tool 12 describes the technologies available for petrol vehicles.

Advanced vehicles and fuels:

There are a number of alternative vehicles and fuels available today, such as natural gas vehicles (CNG), hybrid vehicles (HEV), and vehicles equipped to use ethanol and biodiesel. Tool 13 gives an overview of alternative vehicle technologies and Tool 14 describes the alternative fuels that are currently available

Photo: UNEP Still Pictures

Future vehicles and fuels:

Highly efficient vehicles that use fuel cell and other technologies (e.g. solar, hydrogen, etc.) are currently under development. Tool 15 gives an overview of longer-term vehicle and fuel options.