Unleaded Gasoline, Diesel, Ethanol, or Natural Gas depending on the engine.
No, water is not a fuel.
As far as a I know methane Ch4 is not used in car fuel , it is octane which is used in car fuel C8H18 .
From fuel used in car
yes
no
Airplanes have a unique engine that can only run on a certain fuel and if you put it in your car it wouldn't be able to burn it. :)
no
The fuel filter.
The most fuel efficient used car is the 2004 to 2006 Toyota Scion. It gets 30 miles per gallon combined.
Henry Ford's first car the "Quadricycle" that he built in 1896 ran on gasoline.
This depends in the make of the hybrid car, but generally you can use regular unleaded fuel in your hybrid car without having an issue with your car. It is best to consult the deal about fuel before making a purchase.
Diesel fuel injection service allows you to fill you car will fuel that will allow for your car to travel further. Diesel is typically used by trucks.