Gasoline engines have the benefit over diesel in being lighter and able to work at higher rotating speeds and they are the usual choice for fitting in high presentation sports cars. Continuous development of gasoline engines for over a hundred years has formed improvements in efficiency and reduced pollution. The carburetor was used on nearly all road car engines awaiting the 1980s but it was long realized better control of the fuel/air mixture could be achieved with fuel inoculation.
Indirect fuel injection was initially used in aircraft engines from 1909, in racing car engines from the 1930s, and road cars from the late 1950s. Gasoline Direct Injection (GDI) is now starting to appear in making vehicles such as the 2007 BMW MINI. Wear out gases are also cleaned up by appropriate a catalytic converter into the tire out system. Clean air legislation in many of the car industries most important markets have made both catalysts and fuel injection virtually common fittings. Most modern gasoline engines are also able of running with up to 15% ethanol mixed into the gasoline - older vehicles may have seals and hoses that can be wounded by ethanol. With a small amount of redesign, gasoline-powered vehicles can run on ethanol concentration as high as 85%. 100% ethanol is used in some parts of the world (such as Brazil), but vehicles must be in progress on pure gasoline and switched over to ethanol once the engine is running. Most gasoline engine cars can also run on LPG with the addition up of an LPG tank for fuel storage and carburetion modifications to add an LPG mixer. LPG produces fewer toxic emissions and is a popular fuel for fork lift trucks that have to activate inside buildings