Depends on the car.
what method would I use to determine the difference between hybrid car verses gas car
Unleaded regular.
The best tires for a small car would be the ones that the car manufacturer recommends you use on the car. If you keep good tires on your car and check them every now and then you will get better gas mileage.
It has the best gas rate
To get the best gas mileage that you car can give you, be sure to keep your engine tuned, keep your tires inflated, use the right grade of motor oil, don't drive aggressively, use cruise control and remove excess weight in your vehicle.
No gasoline used in your car is in a liquid state.
probably not you have a gas line leak
A hybrid car is a car that runs on battery and gas. It uses standard unleaded regular gas.
no
regular car gas
Cars will use more gas idling than starting the car.
You would have to use propane. If it were possible to use natural gas (methane), the car would have to be re-calibrated to use it.