21 MPG combined isn’t going to win any awards, but it’s the price you pay for the 2015 Lincoln MKS AWD 3.7L. This isn’t a car bought by people prioritizing lower fuel costs; it’s for the professional who values a comfortable, quiet ride and confident all-weather traction above all else. The MKS prioritizes a smooth driving experience combined with traditional luxury, and the fuel economy reflects that balance.

City and highway performance

The MKS earns an EPA rating of 18 MPG in the city. Expect this figure to drop if your commute involves frequent stop-and-go traffic or aggressive acceleration. The 3.7L V6 needs to work harder to move the MKS’s mass in those conditions. On the open road, the MKS fares better, achieving a respectable 26 MPG on the highway. The six-speed automatic transmission helps keep the engine in its sweet spot for cruising, and the MKS’s aerodynamic profile contributes to improved efficiency at higher speeds. However, headwinds and sustained speeds well above highway limits will impact your mileage significantly.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2015 Lincoln MKS AWD 3.7L at $2,100. This figure is based on driving 15,000 miles per year and using national average fuel prices. Your actual fuel costs may vary depending on your driving habits, the price of gasoline in your area, and how much you actually drive each year. If your commute is longer than average or you have a lead foot, prepare to exceed this estimate.

Real-world expectations

While the EPA estimates provide a baseline, remember that real-world fuel economy can vary significantly. Some MKS owners report figures slightly below the EPA combined rating, especially in areas with hilly terrain or frequent traffic congestion. Achieving the advertised 26 MPG on the highway requires a conscious effort to maintain a consistent speed and avoid sudden acceleration. Consider factors beyond the EPA numbers when assessing the MKS’s fuel costs for your specific needs.

How it compares

The 2015 MKS isn’t at the top of its class in terms of fuel efficiency. The Acura TL SH-AWD, a competitor with a similar mission of luxury and performance, achieves 21 MPG combined, matching the MKS. Some might cross-shop this Lincoln against the Lexus ES 350, which delivers a more impressive 24 MPG combined but lacks the MKS’s all-wheel drive. The Cadillac XTS, another domestic luxury sedan, delivers similar fuel economy near 19 MPG combined, further emphasizing that models in this class make similar tradeoffs between comfort, features and MPG. For buyers concerned with optimal fuel efficiency, there are better choices; these cars represent a more practical luxury sedan.

Tips to maximize efficiency

Proper tire inflation is critical for maximizing fuel economy in any vehicle, and the MKS is no exception. Check your tire pressure regularly and ensure it matches the manufacturer’s recommended specifications, typically found on a sticker inside the driver’s side door jamb. Underinflated tires increase rolling resistance, which forces the engine to work harder and consume more fuel.

Avoid aggressive driving habits like rapid acceleration and hard braking. The MKS’s 3.7L V6 provides ample power for acceleration, but exploiting that power frequently will significantly reduce your fuel economy. Smooth, consistent acceleration and anticipating traffic conditions can make a considerable difference.

Regular maintenance is essential for good fuel efficiency. Ensure that your MKS’s engine is properly tuned, and that the air filter is clean. A clogged air filter restricts airflow to the engine, reducing performance and fuel economy. Follow the recommended maintenance schedule in your owner’s manual for the best results.

Reduce unnecessary weight in the vehicle. Carrying around heavy items in the trunk increases the vehicle’s overall weight, requiring more energy to accelerate and maintain speed. Remove any items that you don’t need for everyday driving to lighten the load and improve fuel economy. The 2015 MKS is not a small car, but even small measures can add up.

Consider using cruise control on the highway. Cruise control helps maintain a consistent speed, which can improve fuel economy on long trips. Be mindful of hills and traffic conditions, as the cruise control may downshift aggressively to maintain speed, negating some of the fuel-saving benefits. If you’re interested in all all Lincoln fuel economy data, check out our research pages. Also, feel free to view all MKS MPG across all years.