17 MPG combined is a disappointing number, especially on a vehicle with an M badge. This isn’t a sensible 330i; the X4 M delivers a specific thrill, a blend of coupe-like style, SUV practicality, and outright performance that requires a gasoline offering. Buyers accept, even expect, single-digit fuel economy in the city because they value the X4 M’s unique blend of characteristics more than saving money at the pump.

City and highway performance

The EPA estimates are 15 MPG in city driving and 20 MPG on the highway. Given the X4 M’s performance-tuned engine, which allows it to reach 60 mph in under 4 seconds, these figures are not surprising. The turbocharged 3.0-liter inline-six is key to the car, delivering substantial power and responsive acceleration, which impacts the vehicle’s overall economy. The eight-speed automatic transmission, while smooth and efficient in normal driving, is tuned for quick shifts and immediate power delivery when the driver wants it, and that impacts fuel consumption.

Annual fuel cost

The EPA estimates an annual fuel cost of $3,400 for the 2024 BMW X4 M. This is based on driving 15,000 miles per year, with 55% of those miles driven in the city and 45% on the highway, using national average fuel prices. Premium gasoline is recommended for the X4 M to achieve optimal performance, so fuel costs could be higher if you don’t use the fuel that the engine needs.

Real-world expectations

Expect numbers that change based on driving style. Frequent stop-and-go traffic and aggressive acceleration will lower the MPG, easily going below the EPA’s estimate of 15 MPG in the city. Gentle throttle application and steady highway cruising might allow you to approach, or exceed, the 20 MPG highway figure. X4 MPG across all years varies based on engines and driving style, with the X4 M versions being the least fuel-efficient.

How it compares

The X4 M’s fuel economy is worse than many competitors. For instance, the Porsche Macan S offers similar performance, but manages a combined MPG of around 19 MPG. The Mercedes-AMG GLC 43 Coupe, with its turbocharged six-cylinder engine, achieves a slightly better 20 MPG combined. The Audi SQ5 offers 21 MPG combined. Buyers cross-shopping these models should compare the BMW’s performance and design against the slightly better fuel efficiency of its rivals. A buyer may check all Bmw fuel economy data to fully compare their full lineup to competitor vehicles.

Tips to maximize efficiency

Be careful with the accelerator. The X4 M’s engine is responsive, so resist the urge to floor it. Gentle acceleration and anticipating traffic flow can improve fuel consumption.

Use the Driving Experience Control settings. The X4 M offers driving modes, including an “Eco Pro” mode, which optimizes the car’s systems for efficiency. It might dull the throttle response, but it can make a difference, especially on longer highway drives.

Maintain proper tire inflation. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Check your tire pressure regularly, ideally every few weeks, and inflate them to the recommended specifications found on the driver’s side doorjamb.

Minimize idling. Letting the engine idle wastes fuel. Turn off the engine if you anticipate being stationary for more than a minute or two, especially since the X4 M’s engine is very efficient when cold.