The Ford 6.7 Power Stroke diesel engine is a popular choice for truck owners. It's known for its power and towing capacity. But what about fuel economy? Real-world MPG can vary quite a bit. Let's explore what drivers are saying.Some drivers report getting up to 20-25 MPG on the highway when driving without heavy loads. One driver even mentioned seeing 20.3 MPG on a long trip with minimal traffic. However, other drivers report lower figures, especially when towing. One owner saw their MPG drop to 14 while pulling a heavy trailer. City driving also tends to lower MPG, with some drivers reporting 15-16 MPG.So, what affects fuel economy? Several things play a role. Driving speed is a big one. Consistent highway speeds generally lead to better MPG. Towing heavy loads significantly reduces fuel economy. Stop-and-go city driving also uses more fuel compared to highway driving. Terrain and elevation also matter. Going uphill or driving on rough terrain will lower your MPG.How does the 6.7 Power Stroke compare to gas engines? The Ford 7.3L gas V8 is often compared to the diesel. While the gas engine might get around 17 MPG on the highway, the diesel often performs better overall, especially when towing. A recent test showed the 7.3L getting 16.6 MPG while the 6.7 Power Stroke achieved 19.6 MPG under similar conditions.One common question is: "Is the diesel worth the extra cost?" While diesel engines often have a higher initial price, they can offer better fuel economy and more power for towing. This can save money in the long run, especially if you tow frequently. Another question is: "How can I improve my 6.7 Power Stroke's MPG?" Maintaining consistent speeds, avoiding hard acceleration and braking, and keeping your tires properly inflated can all help.In conclusion, the Ford 6.7 Power Stroke offers a balance of power and fuel efficiency. While real-world MPG varies based on driving conditions and habits, many drivers report impressive fuel economy, especially on the highway. As technology advances, we can expect further improvements in diesel engine efficiency. Understanding the factors that affect MPG can help you make informed decisions about your driving style and maximize your fuel economy.