* Engine size: The 2000 Impala came with several engine options (e.g., 3.4L V6, 3.8L V6). Larger engines generally get worse gas mileage.
* Driving conditions: City driving significantly reduces fuel economy compared to highway driving. Things like aggressive acceleration, idling, and using the air conditioning also impact fuel efficiency.
* Tire pressure: Properly inflated tires improve fuel economy.
* Vehicle maintenance: A well-maintained vehicle will generally get better gas mileage than one that needs repairs.
* Fuel type: Using the recommended fuel type is crucial.
With all that said, you can expect a range somewhere between 250 and 400 miles on a full tank. This is a broad estimate. To get a more precise idea, check your owner's manual for the fuel tank capacity and the EPA estimated fuel economy for your specific engine. Then, you can calculate a more accurate range. For example, if your tank holds 18 gallons and the EPA estimate is 20 mpg, your potential range is 360 miles (18 gallons * 20 mpg). Keep in mind that this is just an estimate, and real-world range will vary.
