* Vehicle weight: Heavier vehicles get worse gas mileage than lighter vehicles.
* Aerodynamics: Vehicles with sleek, aerodynamic designs get better gas mileage than vehicles with boxy, less aerodynamic designs.
* Tire pressure: Underinflated tires can reduce gas mileage.
* Driving habits: Aggressive driving (e.g., rapid acceleration and deceleration) can reduce gas mileage.
* Road conditions: Driving in stop-and-go traffic or on rough roads can reduce gas mileage.
* Weather conditions: Driving in cold weather or in high winds can reduce gas mileage.
* Fuel type: Some fuels, such as ethanol-blended gasoline, can reduce gas mileage.
* Vehicle age: Older vehicles may get worse gas mileage than newer vehicles.
* Maintenance: Poorly maintained vehicles may get worse gas mileage than well-maintained vehicles.
