The 2024 Cadillac XT5 AWD, equipped with the 3.6L 6-cylinder engine, gets a combined fuel economy of 21 MPG. That number reflects a compromise many XT5 buyers are willing to make: luxury, space, and all-weather confidence balanced against a fuel bill that isn’t exactly thrifty. This isn’t a hybrid or an EV, and it appeals to a different crowd, one that values the traditional Cadillac experience, even if efficiency takes a backseat.

City and highway performance

The EPA estimates the XT5 AWD at 18 MPG in the city and 26 MPG on the highway. The city figure reflects stop-and-go traffic, where the 3.6L V6 works harder and the benefits of the nine-speed automatic transmission are minimized. On the open road, the XT5 fares better. The 26 MPG highway rating is achievable with disciplined driving, and the engine’s ample torque allows for relaxed cruising. This is a vehicle well-suited to long road trips, and its highway manners largely compensate for its urban shortcomings. Remember that this is a naturally aspirated V6, it needs to rev to deliver its best performance, which can negatively impact fuel economy in city driving.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2024 Cadillac XT5 AWD 3.6L at $2,100. This figure is derived from an assumption of 15,000 miles driven per year, using the national average fuel price as of the calculation date. Individual fuel costs can vary significantly based on driving habits, local fuel prices, and the frequency of short trips versus longer highway journeys. While $2,100 is the number to keep in mind, budget accordingly based on your personal driving profile. Check current gas prices near you to get a more accurate estimate.

Real-world expectations

While the EPA estimates provide a benchmark, real-world fuel economy often deviates. XT5 drivers report figures that hover around the EPA combined rating, with some struggling to consistently achieve the 26 MPG highway rating. Several factors influence this, including driving style, terrain, and accessory use. Aggressive acceleration and frequent hard braking will severely impact fuel economy, as will consistent driving in hilly or mountainous areas. And using features like air conditioning, particularly in hot climates, adds to the engine’s workload and reduces efficiency. Tire pressure also plays a roll; under-inflated tires create more rolling resistance and waste fuel.

How it compares

The Cadillac XT5 occupies a competitive space in the luxury crossover market. Compared to the Lexus RX 350 AWD, which typically achieves around 22 MPG combined, the XT5 is slightly less efficient. The RX prioritizes smooth, efficient operation with its V6 engine. The Acura RDX, another popular choice, manages around 23 MPG combined with its turbocharged four-cylinder, showing how smaller engines can offer similar space with better fuel economy. Models like the Volvo XC60 B5 AWD achieve around 24 MPG combined, which offers a better balance of fuel efficiency and power. This comparison highlights the XT5’s relative disadvantage in the fuel economy department. Before buying, see XT5 MPG across all years.

Tips to maximize efficiency

Gentle acceleration and maintaining a steady speed are important for maximizing fuel economy in the XT5. Avoid hard acceleration from a stop, and try to anticipate traffic flow to minimize braking. The nine-speed automatic transmission is designed to optimize fuel efficiency by keeping the engine in its sweet spot; let it do its job by driving smoothly.

Pay attention to tire pressure. The correct tire pressure, listed on the sticker inside the driver’s side door, reduces rolling resistance and improves fuel economy. Check your tire pressure regularly, especially during temperature changes, as pressure fluctuates with the weather.

Reduce unnecessary weight in the vehicle. Extra cargo adds strain on the engine, forcing it to work harder and consume more fuel. Remove any items you don’t need, such as sports equipment, tools, or anything that simply adds to the vehicle’s weight.

Limit idling. Letting the engine idle for extended periods wastes fuel without covering any distance. If you anticipate being stopped for more than a minute or two, turn off the engine. Modern engines are designed to restart quickly, so the brief delay is preferable to wasting gas while idling.

Use cruise control on the highway. Maintaining a consistent speed on the highway helps to optimize fuel economy. Cruise control prevents unnecessary acceleration and deceleration, leading to more efficient operation, especially on long trips. For more information, see all Cadillac fuel economy data.