* Engine size: The Econoline came with a range of engine options (V6 and V8). Larger engines generally get worse gas mileage.
* Transmission: Automatic transmissions typically use slightly more fuel than manuals (though manuals were less common in Econolines).
* Vehicle condition: Proper maintenance impacts fuel efficiency. A poorly maintained vehicle will get worse gas mileage.
* Driving habits: Aggressive driving significantly reduces fuel economy.
* Load: Carrying heavy cargo reduces fuel economy.
* Tire pressure: Properly inflated tires improve fuel economy.
Therefore, there's no single answer. However, you can expect somewhere in the range of 10-18 MPG for a 2001 Ford Econoline van. The lower end of that range is more likely for larger engines, heavier loads, and poor maintenance. The higher end is more likely for smaller engines, lighter loads, good maintenance, and conservative driving.
To find a more precise estimate for a *specific* 2001 Ford Econoline van, you'd need to know its engine size and transmission type. You could also check the owner's manual (if available) or look up fuel economy data online specific to that vehicle's configuration (e.g., using resources like the EPA's fueleconomy.gov website, though data may be limited for older vehicles).
