Most consumers of fuels are aware of the major fuels we all use like petrol and diesel. Across the world, fuel prices are on the rise and concerns over pollution are growing too. Petrol and diesel are quite old fashioned fuels that we extract from crude oil. These fuels are burnt and they give off gases, some which harm the environment.

Petrol
Petrol is the main fuel that powers cars. Petrol is a very flammable liquid and it is used widely across the world. In the eighties, petrol used to contain lead but soon unleaded fuels replaced lead based fuels. Petrol in its greener form still produces hydro carbons (environment polluting chemicals) so car manufactures are frantically trying to develop fuels that are pollution free.
Diesel
Diesel is becoming more and more popular as people are trying to save money on fuel. Traditionally cars that use diesel as their fuel source tend to be more fuel efficient. The draw back to this is that performance is lost as a compromise. Diesel is by no means a clean fuel and it is a major contributor to the rise in asthma suffers.
Hydrogen
Hydrogen is a fuel that could be powering our cars in the future. This fuel will be able to offer the same level of performance as a petrol derived cars but with zero emissions as the only chemical that is produced from it, is water. The problem with hydrogen as a fuel source is the difficulty encountered when trying to extract hydrogen as a gas; the process is difficult and costly. Further advances are being made everyday so we could all soon see a change in the way we fuel our cars.