24 MPG combined might not sound thrilling, but for the 2021 Cadillac XT4 AWD with its 2.0L turbocharged engine, it’s a reasonable balance. This isn’t a hybrid, nor does it aim for Prius-level efficiency. It’s a compact luxury SUV designed for buyers who value style, comfort, and security in all-weather conditions. The fuel economy, while not class-leading, is part of the price they’re willing to pay for the overall package.

City and highway performance

The EPA estimates for the 2021 Cadillac XT4 AWD give more insight. The 22 MPG city rating reflects the expected drop in efficiency when navigating stop-and-go traffic. The turbocharger needs to spool up frequently, and the AWD system is engaged more often. The 29 MPG highway figure shows the engine’s ability to cruise efficiently once it’s up to speed. The 9-speed automatic transmission helps, allowing the engine to operate at lower RPMs on the open road. This difference between city and highway MPG is typical for turbocharged vehicles with all-wheel drive, and drivers should consider it based on how they drive. Considering the all-wheel drive benefits and comfortable interior, many buyers find this a reasonable tradeoff.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 Cadillac XT4 AWD at $2,400. This is based on driving 15,000 miles per year and using national average fuel prices. Your actual fuel cost will depend on your driving habits, the type of fuel you use (premium recommended), and where you live, as gas prices vary. However, $2,400 is a standard for comparison and helps buyers consider fuel costs in their overall budget when considering the XT4. You can see all Cadillac fuel economy data on our site.

Real-world expectations

EPA estimates are a good starting point, but real-world MPG often differs. Driving style (aggressive acceleration or frequent hard braking), road conditions (hills and stoplights), weather (cold temperatures can reduce MPG), and tire pressure can all impact fuel economy. Owners posting on forums report different results, with some close to EPA estimates and others falling short, especially in city driving. Expect some variation, which shows how important driving habits are to fuel efficiency. Monitor the XT4’s MPG display and note how different routes and driving styles impact your fuel consumption.

How it compares

The 2021 Cadillac XT4 AWD’s fuel economy is in the middle of its class. The Acura RDX SH-AWD gets a similar 21 MPG city and 27 MPG highway, for 23 MPG combined. The BMW X1 xDrive28i gets 23 MPG city / 31 MPG highway, for 25 MPG combined. The Volvo XC40 AWD gets 23 MPG city / 30 MPG highway, for 26 MPG combined.

A Lexus NX 300h AWD hybrid model reaches 31 MPG city / 28 MPG highway, for 30 MPG combined. For buyers who want the best fuel savings, the hybrid Lexus is worth considering. However, those who like the Cadillac’s styling and features might find the XT4’s MPG acceptable, especially with all-wheel drive. Be sure to check out XT4 MPG across all years.

Tips to maximize efficiency

Use the Cadillac’s driving modes. Try “Tour” mode, which optimizes settings for fuel efficiency by adjusting throttle response and transmission shift points. Avoid “Sport” mode unless you need the extra performance, as it holds gears longer and uses more fuel.

Gentle acceleration and braking are helpful. The XT4’s turbocharged engine delivers plenty of torque, so you rarely need to floor the accelerator. Smooth movements improve fuel economy and the driving experience.

Keep tires properly inflated. Check your tire pressure regularly and make sure it matches the recommended levels, which are on a sticker inside the driver’s side doorjamb. Under-inflated tires increase rolling resistance, which reduces fuel economy.

Avoid idling. If you’re stopped for more than a minute, turn off the engine, especially in cold weather. Idling uses fuel and increases emissions.

Remove extra weight. Carrying unnecessary items in your vehicle adds weight, which hurts fuel economy. Clean out your trunk regularly.