Because the Dwarfes demand it so
diesel is more expensive
The petrol is lot more expensive in this town.
Petrol already has additives added, whereas, oil is not processed.
Brazil
politics
diesel is usually more expensive but diesel cars usually have more mpg than petrol cars
cost of refining the crude oil ofcourse... In the UK diesel is more expensive than normal unleaded petrol.
Supreme petrol is one way to say that the gasoline possesses more percentage of hydrocarbon. More the percentage of octane for a given petrol, it will burn more hence giving more energy and less unburnt hydrocarbons. Supreme petrol's are little expensive than regular petrol.
Yes, petrol will work in a diesel engine but will run rough for a short time before the engine needs extensive and expensive repairs.
Automatic cars use a lot of petrol. That is why most people in countries with expensive petrol drive manual cars.
Petroleum is a gas fuel, can also be petrol (PETROL-eum), otherwise car fuels, plane fuels, etc... would be extremely expensive
Because of higher compression ratio.