The 2017 Jaguar XJ AWD 3.0L 6-cyl gets 20 MPG combined. Nobody buys this XJ for fuel consumption reasons. It’s a full-size luxury sedan, meant to coddle and impress, not set economy records. The XJ buyer wants a particular blend of British style and sporting character that few other cars offer. Fuel economy is one trade-off. They value style, exclusivity and performance, and are willing to pay more at the pump.

City and highway performance

The EPA estimates the 2017 Jaguar XJ AWD 3.0L achieves 17 MPG in the city and 26 MPG on the highway. The 17 MPG city figure reflects stop-and-go driving, where the XJ’s weight and inertia affect mileage. The 26 MPG highway rating is more respectable, but still not class-leading. The supercharged 3.0-liter V6 needs to work to move this large sedan at highway speeds, especially with the added weight of the all-wheel-drive system. The eight-speed automatic transmission helps keep the engine in its most efficient range, but physics win.

Annual fuel cost

The EPA estimates owning a 2017 Jaguar XJ AWD 3.0L will cost approximately $2,900 in fuel each year. This is based on driving 15,000 miles annually, with 55% of those miles driven in the city and 45% on the highway. The calculation also uses the national average fuel price at the time of estimation. Remember that this is an estimate; your actual fuel costs may vary depending on your driving habits, location, and gasoline prices. $2,900 serves as a reasonable benchmark for budgeting.

Real-world expectations

The EPA provides estimates, and real-world fuel economy often differs. Expect to see numbers close to the EPA estimates if you drive gently and mostly on the highway. Aggressive driving, frequent short trips, and heavy city traffic will lower your MPG. Owners have reported numbers from the low teens in stop-and-go city driving to around 28 MPG on long highway trips. Driving style affects fuel economy, and the XJ’s supercharged engine can tempt drivers into quick acceleration, impacting efficiency.

How it compares

The 2017 Jaguar XJ’s fuel economy is in the middle of its class. A comparable BMW 740i xDrive, with a turbocharged inline-six and all-wheel drive, gets a slightly better 24 MPG combined. The Mercedes-Benz S450 4Matic, with its own turbocharged six, also scores around 23 MPG combined. The Audi A8 3.0T, also offering a supercharged V6 and all-wheel drive in 2017, delivers similar efficiency to the XJ, near 21 MPG combined. The competition offers minor improvements, but the XJ buyer likely prioritizes design, brand image, and driving feel. For those wanting all Jaguar fuel economy data or examining XJ MPG across all years, our site offers information.

Tips to maximize efficiency

Gentle acceleration is key to saving fuel in the XJ. The supercharged engine is responsive, but using full throttle from every stop will quickly deplete your tank. Gradually building speed allows the engine to operate more efficiently, reducing fuel consumption.

Maintain consistent speeds on the highway. Cruise control reduces fatigue and maintains a steady pace, minimizing unnecessary accelerations and decelerations that waste fuel. Avoid excessive lane changes and aggressive overtaking will also help fuel economy.

Ensure your tires are properly inflated. Underinflated tires create more rolling resistance, forcing the engine to work harder and decreasing fuel efficiency. Check your tires regularly and inflate them to the recommended pressure listed on the doorjamb sticker. This small adjustment can make a difference.

Regular maintenance is critical. Keeping the engine tuned and ensuring all components are functioning correctly will maximize fuel efficiency. Simple tasks like changing the air filter and using the recommended oil viscosity can help maintain performance and fuel economy.

Minimize idling. Letting the engine idle consumes fuel. If you expect to be stationary for more than a minute or two, turning off the engine can save fuel, especially in city driving. Newer XJ models feature auto start-stop which helps mitigate this.