* Reliability: Generally considered very robust and durable, capable of extremely high mileage with proper maintenance. This reputation is largely why it's still highly sought after.
* Gas Mileage: Fuel economy is significantly lower than modern diesel engines. Expect to get considerably less MPG than newer trucks, even other diesel trucks. The exact mileage will depend on factors like vehicle weight, driving style, and condition of the engine.
In short: If reliability is your top priority and you're okay with significantly lower fuel efficiency than modern diesels, the 7.3L Power Stroke is a strong contender. However, if fuel economy is a major concern, you should look at more modern options.
