i-will wrote:they can raise the price as high as they want.
Wrong. If one company pushes it's prices up, people will stop buying from them.
The prices have to rise in unison between the companies.
u got no choice but to pay.
Again, wrong. I've just made a 21 mile journey without paying petrol companies one penny.
mrbadexample wrote:1.5 liter engine, by nature, sucks down 2,250 liters of fuel/air mixture @ 3,000 RPMs
That would only be if you've got your foot welded to the floor.
Taking a number I have handy, a 206 GTi 180 with a 2 litre engine takes about 2.5 hp to overcome air resistance at 30 mph.
The car has 180 hp in the first place, so you're only using, if you consider that some energy is needed to overcome mechanical friction and to keep the engine turning over... maybe 5% of the car's potential power.
More likely, the car would be using a couple of hundred litres a minute, not thousands. But there's simply not enough gasses handy even then.