With the rising cost of fuel, the gasoline mileage for a potential car can be one of the more critical factors affecting your decision to buy it.  Thus, you can easily research fuel mileage comparisons on the Internet and thus see how much fuel your potential car spends for a certain amount of miles.  However, it is important that you do not allow these fuel mileage comparisons to be your sole deciding factor, as these comparisons can sometimes be misleading.  Don’t forget that these factors are “best state” values that depend on certain operating conditions.  So, don’t just base your decision solely on these numbers and evaluate your personal conditions to help you to make your decision.