Gas mileage refers to the distance a vehicle can travel on a specific amount of fuel, usually measured in miles per gallon (MPG). Higher gas mileage indicates that a vehicle is more fuel-efficient, meaning it can go further on less fuel. This is an important factor for many drivers, as it can affect overall fuel costs and environmental impact. Several factors influence gas mileage, including the vehicle's make and model, driving habits, and road conditions. For example, hybrid cars typically offer better gas mileage than traditional gasoline-powered vehicles. Regular maintenance, such as keeping tires properly inflated, can also help improve fuel efficiency.