* Year of the vehicle: Older 7.3L engines generally get slightly worse fuel economy than newer ones due to advancements in engine technology.
* Vehicle weight: A heavier truck (added equipment, larger tires, etc.) will get lower MPG.
* Driving conditions: City driving drastically reduces MPG compared to highway driving. Terrain (hills, mountains) also significantly impacts fuel economy.
* Maintenance: Proper maintenance (including air filter, fuel filter changes) is critical for optimal fuel efficiency.
* Driving style: Aggressive acceleration and high speeds consume more fuel.
While you might find some generalized averages online, they'll be broad estimates. You're more likely to find more accurate information by specifying the *year* and *model* of the truck (e.g., 1999 Ford F-250 with a 7.3L Power Stroke). Even then, individual results can vary widely.
Expect highway MPG to generally fall in the range of 12-18 MPG, with city MPG significantly lower (8-14 MPG or even less). These are rough estimates; your actual mileage may differ substantially.
