17 MPG combined. Nobody buys a 2023 BMW X3 M for its fuel efficiency. This is a performance SUV, engineered for driving thrills. The fuel economy is a secondary consideration, an accepted penalty for the combination of a turbocharged inline-six engine and BMW’s M division enhancements. The typical X3 M buyer wants blistering acceleration, razor-sharp handling, and aggressive styling. Practicality plays a role, but performance seals the deal.

City and highway performance

The EPA estimates for the X3 M are 15 MPG in the city and 20 MPG on the highway. The city figure reflects the engine’s thirst when dealing with stop-and-go traffic, requiring frequent bursts of power to navigate urban environments. The highway number isn’t terrible, but it’s still far from the fuel-sipping crossovers dominating the market. Expect to see the MPG drop even further if you frequently use the engine’s horsepower for overtaking or spirited backroad driving. The automatic (S8) transmission doesn’t prioritize fuel savings; it aims to deliver lightning-fast shifts, which can affect overall efficiency. To get a better idea of X3 MPG across all years, consult our data.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2023 BMW X3 M at $3,400. This estimate is based on driving 15,000 miles per year and using national average fuel prices. Your actual fuel costs will vary depending on your driving habits, fuel prices in your area, and the type of fuel you use. The X3 M likely requires premium fuel, which is more expensive than regular unleaded. If you drive more aggressively or spend a lot of time in heavy traffic, expect to exceed this annual figure.

Real-world expectations

Achieving the EPA’s numbers might be difficult, particularly for drivers with a heavy foot. The X3 M encourages spirited driving, and its performance capabilities are hard to resist. Expect the combined MPG to change depending on driving style. Highway figures can approach 20 MPG if you drive conservatively and maintain a steady speed. However, repeated acceleration or high-speed cruising will quickly reduce efficiency. Drivers who live in hilly areas or frequently encounter congestion should anticipate even lower numbers. This isn’t a hybrid vehicle with an eCVT that will let you coast, it’s an enthusiast vehicle that will encourage you to press the gas pedal.

How it compares

Compared to its rivals, the X3 M’s fuel economy is predictably thirsty. The Mercedes-AMG GLC 63 S, another high-performance SUV, achieves a similar 16 MPG combined. If you’re willing to sacrifice some performance for better fuel economy, the Porsche Macan S averages around 19 MPG combined, an improvement. The Audi SQ5 falls somewhere in the middle, typically rated around 21 MPG combined. For shoppers who value fuel economy far more than horsepower, all Bmw fuel economy data may present better options, or looking at a different vehicle segment entirely, like a hybrid SUV, might make sense. The X3 M buyer is willing to accept lower MPG as a trade-off for the vehicle’s performance and driving dynamics.

Tips to maximize efficiency

Avoid aggressive acceleration. The X3 M’s turbocharged engine delivers immense power, but rapid acceleration burns a lot of fuel. Drive smoothly, gradually increasing your speed.

Use the ECO PRO driving mode. The X3 M offers different driving modes that alter the vehicle’s performance. ECO PRO mode optimizes fuel efficiency by adjusting the throttle response, transmission behavior, and climate control settings. While it may slightly dampen performance, it can affect fuel consumption, particularly on longer trips.

Maintain optimal tire pressure. Underinflated tires increase rolling resistance, which affects fuel economy. Regularly check your tire pressure and inflate them to the recommended level. This helps to reduce drag. Also consider the tires you pick when replacing them. A summer performance tire will be stickier, but less fuel efficient.

Minimize idling. Excessive idling consumes fuel. Turn off the engine when stopped for extended periods, such as waiting in traffic or at a stoplight. Even a few minutes of idling can impact fuel economy.

Reduce unnecessary weight. Carrying excess weight in your vehicle increases fuel consumption. Remove any unnecessary items from the trunk and passenger area to reduce the load on the engine. A lighter vehicle requires less energy to accelerate and maintain speed.