BMW · 2018
X4 xDrive28i 2.0L 4-cyl
✓ EPA Verified
Premium Gasoline
Small Sport Utility Vehicle 4WD
All-Wheel Drive
City
20
MPG
Combined
23
MPG
Highway
28
MPG
Annual Fuel Cost
$2,500
Based on 15,000 miles/year · EPA estimates
vs avg gas vehicle
$350
more per year
Class Comparison — Small Sport Utility Vehicle 4WD
Bottom 34%
Better than 34 out of 100 vehicles in its class for fuel efficiency.
This vehicle: 23 MPG
This vehicle
23 MPG
Class average
31 MPG
Class lowest
14 MPG
EPA Energy & Environment Scores
5
Energy Score
Out of 10
5
GHG Score
Out of 10
384 lbs
Annual CO₂
g/mile tailpipe CO₂
Yes
Start-Stop
Auto stop-start
Vehicle Specifications
Engine2.0L 4-cyl
TransmissionAutomatic (S8)
DriveAll-Wheel Drive
Fuel TypePremium Gasoline
Vehicle ClassSmall Sport Utility Vehicle 4WD
Engine DescSIDI
Start-StopYes
EPA Vehicle ID38637

The 2018 BMW X4 xDrive28i gets 23 MPG combined. This isn’t a Prius, and most buyers of this stylish, coupe-inspired crossover aren’t prioritizing hypermiling. The X4 emphasizes sporty driving and visual appeal. The 2.0L turbo four works hard for decent acceleration, which requires fuel. While the fuel economy isn’t terrible, buyers particularly concerned about fuel bills might consider other options.

City and highway performance

The EPA estimates 20 MPG in the city and 28 MPG on the highway for the 2018 X4 xDrive28i. The city figure is probably more important because many X4s spend a lot of time in urban environments. Stop-and-go traffic uses more fuel, and the X4’s turbo engine, though responsive, doesn’t reward aggressive driving. The highway figure is more attainable with a steady cruising speed. However, pushing the X4 hard on the open road will quickly decrease MPG. This vehicle encourages spirited driving, which uses more fuel.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,500 for the 2018 BMW X4 xDrive28i. This is based on 15,000 miles per year, with 55% in the city and 45% on the highway. It also assumes average national fuel prices. Your actual fuel costs could be higher or lower based on your driving habits, fuel type, and location. Expect to spend more with more city driving or aggressive acceleration. Conversely, driving primarily on the highway with efficient techniques could save you money.

Real-world expectations

EPA estimates provide a baseline, but real-world MPG for the 2018 X4 xDrive28i often varies. Owners have reported figures close to the official numbers. Many report city driving MPG around 18-19 MPG with significant congestion. Highway figures can reach 30 MPG or higher with careful driving and consistent use of cruise control on flat terrain. Achieving EPA numbers requires effort and a driving style that emphasizes efficiency.

How it compares

The X4’s fuel economy competes reasonably well against rivals. The Mercedes-Benz GLC 300 Coupe, a direct competitor with a similar 2.0L turbo engine, gets an EPA-estimated 22 MPG combined. The Acura RDX, while not a “coupe” SUV, offers similar space, performance, and price; it delivers a slightly better 23 MPG combined with its standard front-wheel drive. Adding SH-AWD to the RDX brings the combined MPG estimate to 22. A Porsche Macan with its base 2.0L turbo has a similar combined EPA-rating of 21 MPG. Across all years, X4 MPG is comparable to other sporty crossovers for similar buyers. The smaller X1 or X2 may be better crossovers for drivers seeking better fuel economy, even within the BMW family. See all Bmw fuel economy data.

Tips to maximize efficiency

Anticipate traffic and adjust your driving. Avoid sudden acceleration and braking, which use significant fuel. Smooth transitions are key to maximizing fuel efficiency in the X4.

Use the X4’s selectable driving modes. The “Eco Pro” mode optimizes vehicle settings, including throttle response and shift points, to prioritize fuel economy. Performance will be slightly reduced, but it can noticeably improve your MPG, especially in city driving.

Keep your tires properly inflated. Underinflated tires increase rolling resistance, which reduces fuel efficiency. Check your tire pressure regularly and inflate them to the recommended level, usually found on a sticker inside the driver’s side door.

Reduce unnecessary weight. Heavy cargo in your X4 uses more fuel. Remove items you don’t regularly need, like sporting equipment or tools, to lighten the load and improve your MPG.

Use cruise control on the highway. Cruise control helps maintain a consistent speed, which can improve fuel economy on long trips. Be mindful of terrain and traffic because cruise control can be less efficient on hilly roads or in stop-and-go traffic. That’s especially true of the 2018 BMW X4’s 8-speed automatic, because it may upshift and downshift too frequently if left to react on its own to challenging traffic conditions.