If you know a lot of people who share the same experience with you, it might be something fishy, but if it doesn't, it might be time to check your car. How dir

If you know a lot of people who share the same experience with you, it might be something fishy, but if it doesn't, it might be time to check your car. How dirty are the injectors, how clean are the air filter, how good are the spark plugs, if the mass air flow sensor works OK, and some other parts that could make your car to use more gas. All of this can be inspected by any good mechanic easily.