18 MPG combined won’t help the environment, but for the 2018 Lincoln Navigator 4WD with its 3.5L EcoBoost V6, it’s the price you pay. This isn’t a vehicle for those prioritizing less gas. Instead, the Navigator is chosen for its large interior, luxurious features, commanding presence, and undeniable towing capability. Buyers are willing to trade some efficiency for the sheer competence and swagger this full-size SUV delivers.

City and highway performance

The EPA estimates of 16 MPG in the city and 21 MPG on the highway show what it takes to move a vehicle this large and heavy. The 3.5L EcoBoost V6, while strong, requires a lot of fuel to overcome the Navigator’s weight when accelerating from a stop in city driving. The 10-speed automatic transmission works hard to keep the engine in its best power range, but stop-and-go traffic always has an effect. On the open road, the Navigator does better. At cruising speeds, the engine isn’t working as hard, and the aerodynamics are more helpful. Expect to see numbers closer to the EPA’s 21 MPG highway figure if you maintain consistent speeds and avoid aggressive acceleration.

Annual fuel cost

The EPA estimates that the average 2018 Lincoln Navigator 4WD owner will spend $2,450 per year on fuel. This figure is based on driving 15,000 miles annually, with a 55/45 split between city and highway driving, and using the EPA’s projected national average fuel prices. This is an estimate, and your actual fuel costs will vary depending on your driving habits, the type of fuel you use, and where you live.

Real-world expectations

The EPA provides a standardized benchmark, but real-world fuel economy often differs. Navigator owners often report slightly lower MPG figures than the EPA estimates, especially in city driving. Factors such as frequent towing, aggressive driving, and extended idling can significantly reduce fuel economy. Those who regularly tow heavy loads should expect much lower MPG figures than the EPA estimates, sometimes less than 15 MPG. However, drivers who mostly use the Navigator for long highway trips at consistent speeds may see slightly better fuel economy numbers.

How it compares

Compared to its competitors, the 2018 Lincoln Navigator’s fuel economy is similar to other full-size luxury SUVs. The Cadillac Escalade, with its 6.2L V8, gets around 17 MPG combined. The Infiniti QX80, another V8-powered competitor, also gets around 16 MPG combined. Even the Lexus LX 570, known for its reliability, only manages 15 MPG combined. Some newer competitors offer slightly better fuel economy, often with hybrid powertrains, like the Lexus LX 600h, which is rated at 23 MPG combined. The 2018 Navigator’s fuel consumption is within the expected range for its class. Buyers concerned about fuel costs should weigh the fuel economy against the capabilities offered by a full-size SUV. For more information, check out all all Lincoln fuel economy data. You can also see information about NAVIGATOR MPG across all years.

Tips to maximize efficiency

Minimize idling time. The Navigator’s large engine consumes a significant amount of fuel when stationary. Avoid unnecessary idling, especially in stop-and-go traffic. If you’re waiting for more than a minute, it’s more fuel-efficient to turn off the engine and restart it when you’re ready to go.

Drive smoothly and avoid aggressive acceleration. The EcoBoost engine delivers ample power, but using it too much will quickly drain the fuel tank. Accelerate gradually and maintain a steady speed to maximize fuel efficiency. Avoid sudden braking and hard cornering, as these also contribute to increased fuel consumption.

Maintain proper tire inflation. Underinflated tires increase rolling resistance, which reduces fuel efficiency. Check your tire pressure regularly and inflate them to the recommended level specified on the door jamb sticker. This simple step can improve your fuel economy.

Consider using cruise control on the highway. Cruise control helps maintain a constant speed, which can improve fuel economy on long highway drives. By reducing changes in speed, you can minimize unnecessary fuel consumption. Be mindful of road conditions and traffic patterns, and adjust your speed accordingly.