* Year of the Impala: Fuel economy standards and engine options changed over the years the Impala was produced. Older models will generally get worse gas mileage than newer ones.
* Engine size and type: A smaller, more fuel-efficient engine will allow for a longer range than a larger, more powerful engine.
* Driving style: Aggressive acceleration and high speeds drastically reduce fuel economy.
* Road conditions: Driving in stop-and-go traffic or on hilly terrain reduces fuel economy compared to highway driving.
* Vehicle condition: Properly maintained vehicles tend to get better gas mileage.
* Tire pressure: Under-inflated tires reduce fuel economy.
The EPA estimates for different years and models of the Impala range from approximately 20 MPG combined (city and highway) to over 30 MPG on the highway for the most fuel-efficient versions.
To estimate the range:
1. Find the EPA estimate: Look up the specific year and model of your Impala to find its EPA estimated MPG.
2. Check your tank size: Consult your owner's manual to determine your Impala's fuel tank capacity (usually around 18-20 gallons).
3. Calculate the range: Multiply the MPG by the tank size. For example, a 25 MPG Impala with a 18-gallon tank could travel approximately 450 miles on a full tank (25 MPG x 18 gallons = 450 miles). This is just an *estimate*.
In short, there's no single answer. You need to consider the specific details of your Impala to get a reasonable estimate of its range. The best approach is to check your owner's manual and use the EPA estimates as a guide. Real-world results will likely vary.
