Turbine engines are most commonly found in airplanes. They use gas for fuel. They are also known as "jet" engines, hence the term for the plane.
Because even idling engines use fuel.
Buses, like many large vehicles, burn diesel fuel. Deisel-burning engines are better suited for large vehicles than gasoline-burning engines.
On modern vehicles with fuel injected engines it is located on top and inside the fuel tank.
bigger vehicles usually have bigger engines which take more fuel to crank the motors and turn the tires which is why you are gettin worse gas mileage
Modern engines can run some Ethanol. Modern gasoline engines are now set up to run E10, which is a mixture of 10% ethanol. To use higher percentages like E85, which is 85% Ethanol, engines need appropriate seals, hoses and engine settings (timing, etc.). Vehicles set up to run E85 have been selling for a number of years and are sold as "Flex Fuel" vehicles. Such vehicles have a fuel sensor in the fuel line to monitor the mix of gasoline and ethanol present and adjust the engine appropriately for the fuel being used. Either all gasoline can be used or any mixture of ethanol up to 85% ethanol (E85). Running E85 in a vehicle not set up for this mixture will damage seals and fuel lines.
Vehicles with engines must have fuel that is combustible. When conbustion occurs, heat is generated with burning of the fuel. This rection ceates vapors that have chemicals (pollulants.) These pollulants are released into the air causing air pollution.
Gasoline and Diesel engines are internal combustion engines. The fuel explodes (combusts) internally (in the cylinder) and releases energy that is used to move the vehicle. Electric engines and steam engines are not internal combustion engines by definition. Steam engines combust their fuel externally to the "engine". The vast majority of passenger vehicles produced throughout history are driven by internal combustion engines.
Most small vehicles do not use diesel engines.
The rise of VAT and oil prices are not good, this delays the fuel ignition as people are waiting longer before going to a fuelling station to fill up their vehicles there for this problem is ruining the ignition of our engines as the vehicles are running on the sludge at the bottom of the fuel tanks.
Vehicles release carbon monoxide into the air from the combustion of fuel in their engines. And the amount of such kind of pollution is very great, mainly in big cities.
It's an old trick to clean out the injection system, BUT... it's not advisable for all vehicles, especially diesel engines with an aftertreatment system.