Are you using fuel or gas?

This is the question I have in mind and wanting to ask everyone. Do you have a vehicle? Yes, then what does it consume? Fuel or Gas?

Someone was telling me that if you having a car that use fuel it's not good to turn it into using gas. It will make the car engine to have problems. I don't know how true is that.

If anyone have such experience I hope they can share them. If you are travel a lot I am sure you need to have a good transportation.

As for me I still prefer to use the fuel it's much faster and easier. I hate waiting and I always get impatient.