The 2018 BMW X6 xDrive35i gets 20 MPG combined, a figure that may deter some buyers. However, those attracted to this model often accept this as part of the ownership experience. The X6 isn’t typically purchased for its fuel efficiency. It’s chosen for its unique coupe-like design combined with the high driving position and all-weather capability of an SUV. It makes a statement, and the xDrive35i balances that statement with a level of practicality and performance that some buyers find appealing.

City and highway performance

The EPA estimates for the 2018 BMW X6 xDrive35i, equipped with the 3.0L inline-six and automatic transmission, are 18 MPG in the city and 24 MPG on the highway. The city number reflects the demands on the turbocharger and eight-speed automatic in stop-and-go traffic. The highway number is better, showing the engine’s ability to cruise efficiently at higher speeds, but it’s not class-leading. These numbers highlight the X6’s priorities of performance and style over pure fuel savings. The xDrive all-wheel-drive system offers all-weather capability, but also increases fuel consumption due to added weight and mechanical drag.

Annual fuel cost

The EPA estimates that 2018 BMW X6 xDrive35i owners will spend approximately $2,900 per year on fuel. This is based on driving 15,000 miles annually, using a mix of city and highway driving, and assuming average national fuel prices. This is a significant cost compared to more fuel-efficient vehicles in its class, emphasizing that fuel economy isn’t a top priority for X6 buyers. The higher fuel cost stems from the engine’s need for premium fuel, which is common for high-performance BMW engines. Remember this number when thinking about the total cost of owning the vehicle, as it will significantly impact your budget.

Real-world expectations

While the EPA provides a standard, actual fuel economy can change quite a bit based on driving habits, traffic, and terrain. Hard acceleration, frequent braking, and long periods of idling will all hurt fuel consumption. Drivers who spend a lot of time in busy cities will likely see MPG numbers below the EPA’s 18 MPG city estimate. On the other hand, those who mainly drive on the highway at consistent speeds may see numbers close to, or even a little above, the 24 MPG highway rating. Regular maintenance, including correct tire inflation and timely oil changes, can also affect fuel efficiency. Check out the X6 MPG across all years for more.

How it compares

The 2018 BMW X6 xDrive35i’s fuel economy isn’t as good as some of its competition. The Acura MDX with SH-AWD, for example, typically gets around 19 MPG city and 27 MPG highway. Even the Porsche Cayenne, an SUV focused on performance like the X6, can get similar or a bit better numbers depending on the engine. The Cayenne’s base model gets around 19 city / 23 highway. The X6 blends SUV practicality with a distinct coupe-like shape. Buyers who want fuel efficiency above all else may be better off with a more standard SUV like the Lexus RX 350, which gets around 20 MPG city and 27 MPG highway. When looking at other BMW options, remember to review all Bmw fuel economy data before deciding.

Tips to maximize efficiency

One of the best ways to improve fuel economy in the X6 xDrive35i is to drive more smoothly. Avoid hard acceleration and braking, since these consume a lot of fuel. Look ahead at traffic and keep a stable speed when you can. Using the adaptive cruise control on the highway can also help use less gas by keeping a consistent speed and following distance.

Make sure your tires have the right amount of air. Low tire pressure increases rolling resistance, which wastes fuel. Check your tire pressure often, especially when the temperature changes, as this can affect tire pressure. The correct tire pressure is usually on a sticker inside the driver’s side doorjamb.

Avoid idling without need. If you’re stopped for more than a minute, it’s usually better to turn off the engine. Modern engines restart quickly and easily, so there’s no need to keep the engine running. Think about situations where you might idle, like waiting in a parking lot or at a drive-through.

Reduce the weight in the vehicle. Extra weight makes the engine work harder and reduces mileage. Take out anything you don’t need from the trunk or cargo area. Carrying heavy things can noticeably lower your MPG, especially in the city.

Use the X6’s driving mode selector. Choosing “Eco Pro” mode can change vehicle systems for better fuel use, this includes throttle response and how the transmission shifts. It might slightly reduce performance, but this can help you get a few more miles per gallon in the right situations. Remember to switch to other modes when you need full power for passing and merging.