42 MPG combined is impressive for the 2020 Ford Fusion Energi Plug-in Hybrid. It’s a comfortable, mid-size sedan aimed at buyers who want to significantly reduce their fuel consumption without sacrificing everyday usability. The Energi version, now discontinued, offered a useful electric-only range that made it appealing to suburban dwellers with predictable commutes and access to charging.

City and highway performance

The EPA numbers show a slight edge in the city, with 43 MPG compared to 40 MPG on the highway. This reflects the Energi’s strength: its ability to use electric power in stop-and-go traffic. Regenerative braking captures energy that would otherwise be lost, further boosting efficiency around town. On the highway, the gasoline engine plays a larger role, resulting in slightly lower, but still commendable, fuel economy.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2020 Ford Fusion Energi at $1,050. This figure is based on driving 15,000 miles per year and using national average fuel prices. Your actual fuel cost will vary depending on your driving habits, the price of gasoline in your area, and how frequently you plug in to recharge the battery. Someone who primarily uses electric power for short trips and only occasionally relies on gasoline will likely spend far less than $1,050 annually. It’s a useful baseline, but certainly not a definitive number for every owner of the Fusion Energi.

Real-world expectations

While the EPA numbers are a good starting point, real-world fuel economy for plug-in hybrids like the Fusion Energi can fluctuate significantly. Drivers who diligently charge their vehicles and primarily drive short distances in electric mode will often exceed the EPA estimates.

Conversely, those who rarely plug in and rely mostly on the gasoline engine may see figures closer to a standard hybrid, perhaps in the high 30s. The key to maximizing fuel efficiency with the Energi lies in consistent charging and strategic use of electric power.

How it compares

The Fusion Energi’s 42 MPG combined is competitive within the plug-in hybrid segment. For example, the Toyota Prius Prime achieves an EPA rating of 54 MPG combined, making it a more efficient choice, but it is a smaller vehicle with a different driving experience. The Hyundai Sonata Plug-in Hybrid, another mid-size competitor, achieves roughly the same fuel economy as the Fusion Energi. Buyers prioritizing interior space and traditional sedan styling might find the Fusion Energi more appealing than these alternatives. If outright fuel savings are your goal, you can view all Ford fuel economy data. If you’re focused on the Fusion lineup specifically, check out FUSION MPG across all years for a broader context.

Tips to maximize efficiency

Consistent charging is critical. Plugging in the Fusion Energi every night, or whenever possible, allows you to maximize its electric range and minimize gasoline consumption. Even short charging sessions can make a difference, especially during errands or quick stops.

Pay attention to driving modes. The Fusion Energi typically offers different driving modes, such as “EV Auto,” “EV Now,” and “EV Later.” Use “EV Auto” for most situations, allowing the car to switch between electric and gasoline power as needed. Reserve “EV Later” for situations where you want to conserve battery power for later use, such as entering a city center with electric-only zones.

Gentle acceleration and braking are key. Plug-in hybrids benefit greatly from smooth driving habits. Avoid aggressive acceleration and hard braking, as these actions deplete the battery more quickly and force the gasoline engine to work harder. Use regenerative braking whenever possible to recapture energy and extend your electric range.

Precondition the cabin while plugged in. Heating or cooling the cabin while the car is still plugged into the charger draws power from the grid instead of the battery, preserving your electric range for driving. This is particularly useful during extreme weather conditions.