The 2019 Jaguar XJL AWD with the 3.0L supercharged V6 gets 20 MPG combined. While it won’t win any awards for being green, many XJL buyers accept this compromise. This car isn’t about frugality; it’s an indulgence, a statement of personal taste, and a commitment to rear passenger comfort. The XJL buyer wants the distinctive design, the supple ride, the powerful and smooth engine, and the spacious interior. Fuel economy is lower on the list of priorities than these attributes, although it is still relevant.

City and highway performance

The EPA estimates the XJL’s fuel economy at 17 MPG in the city and 25 MPG on the highway. The city figure reflects stop-and-go traffic, where the supercharged V6’s power requires a heavier foot. Expect this number to dip lower in congested conditions, especially since the automatic transmission favors swift acceleration. The highway MPG, while seemingly adequate, doesn’t tell the whole story. The XJL is a comfortable long-distance cruiser, and driving at higher speeds will reduce fuel economy, especially if using the engine’s passing power. While 25 MPG is achievable on a steady, flat highway, expect less if you’re tackling hills or frequently overtaking slower traffic.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2019 Jaguar XJL AWD at $2,900. This is based on driving 15,000 miles per year using national average fuel prices at the time of calculation. Your actual fuel costs will vary depending on your driving habits, the type of fuel you use (premium is recommended for optimal performance), and fluctuations in fuel prices. Drivers who primarily use the XJL for short city commutes and have a heavier foot will likely exceed this figure, while those who spend more time on the highway and drive conservatively may get closer to, or even slightly below, the $2,900 estimate.

Real-world expectations

Anyone considering this XJL variant should lower their expectations. The EPA figures provide a baseline, but real-world MPG often falls below the advertised numbers. Expect to see around 18-19 MPG in mixed driving conditions. Aggressive acceleration, frequent short trips, and consistent city driving will impact fuel consumption. In addition, the all-wheel-drive system enhances traction and stability but also adds weight and contributes to lower fuel efficiency compared to a rear-wheel-drive XJL. For a broader look at XJL MPG across all years, explore our data.

How it compares

The 20 MPG combined figure puts the XJL in a segment of the luxury car market where powerful engines and spacious interiors take precedent over efficiency. The Mercedes-Benz S450 4Matic, a direct competitor, achieves a slightly better 22 MPG combined. The BMW 740i xDrive also edges out the XJL with 24 MPG combined. Even the Lexus LS 500 AWD manages a comparable 21 MPG. These differences can add up and might be a factor for some buyers. However, the XJL offers a distinct driving experience and level of exclusivity that its rivals simply can’t match. If you’re comparing models and looking for all Jaguar fuel economy data, we have a section dedicated to performance and specs.

Tips to maximize efficiency

Driving smoothly and anticipating traffic flow can reduce fuel consumption in the XJL. Avoid harsh acceleration and braking, and maintain a steady speed. The car’s quick-shifting transmission responds well, so driving with a lighter foot can make a real difference.

Ensure the tires are properly inflated to the recommended pressure. Underinflated tires increase rolling resistance, forcing the engine to work harder and reducing fuel economy. Check the tire pressure regularly, especially before long trips.

Reduce unnecessary weight in the vehicle. Carrying extra cargo in the trunk adds to the vehicle’s mass and negatively impacts fuel efficiency. Remove any items that are not essential for your daily driving needs.

Consider using the Jaguar’s “Eco” driving mode, if equipped. This mode adjusts the engine and transmission settings to prioritize fuel economy, often resulting in slightly improved MPG figures. While it may temper the throttle response, it’s an option for city driving and highway cruising.

Regular maintenance, including oil changes and air filter replacements, is critical for engine performance and fuel efficiency. A well-maintained engine runs more efficiently, helping to maximize MPG. Adhering to the manufacturer’s recommended service schedule is essential.