* Vehicle weight: A heavier vehicle will get worse gas mileage than a lighter one with the same engine.
* Aerodynamics: A more aerodynamic vehicle will be more fuel-efficient.
* Transmission type: Automatic transmissions generally have slightly lower fuel economy than manuals.
* Driving style: Aggressive driving significantly reduces fuel economy.
* Tire inflation: Properly inflated tires improve fuel efficiency.
* Vehicle condition: Proper maintenance (tune-ups, etc.) improves fuel economy.
* Year and make/model: Engine technology has improved over the years, leading to better fuel economy in newer vehicles.
To find the gas mileage for a *specific* vehicle with a 2.9L V6 engine, you'll need to look up its EPA estimated fuel economy. You can usually find this information:
* On the vehicle's sticker: Often found inside the driver's side doorjamb.
* On the manufacturer's website: Search for the specific year, make, and model of the vehicle.
* On fuel economy websites: Websites like fueleconomy.gov (US) or similar sites for other countries provide this data.
In short, you need more information than just the engine size to determine the gas mileage.
