Whenever you are in the process of evaluating your car, probably the biggest problem on your mind is the gas mileage of your vehicle. It is important for you to evaluate the factors that affect your car gas mileage, as it can help you to keep more of your money in your pocket. Contrary to popular belief, there are some concrete things that you can do easily, without changing your car. Experts state that by inflating your tires and also by making sure that they have traction, you can increase the mileage of your car that you get from a full depot of gas.