The 2019 Infiniti QX30 2.0L 4-cyl gets a combined fuel economy of 27 MPG, a number that’s adequate, but likely not the main reason someone buys this stylish subcompact crossover. QX30 buyers want good looks and a recognizable brand; fuel efficiency is less important than a good driving experience and an upscale image.

City and highway performance

The QX30’s 2.0L turbocharged engine and seven-speed automatic transmission provide respectable fuel economy in different driving conditions. The EPA estimates 24 MPG in the city, which reflects stop-and-go traffic. The engine’s responsiveness helps with merging and navigating city streets, but constant stops and starts use more gas. The QX30 does better on the open highway, achieving 33 MPG. This improved fuel economy happens because the transmission shifts to higher gears, and the engine runs efficiently at steady speeds.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2019 Infiniti QX30 is $2,150. This is based on driving 15,000 miles per year and using national average premium gasoline prices, which the QX30 requires. Your actual fuel costs will change depending on how you drive, whether you do more city or highway driving, and the current gasoline prices. The $2,150 figure is a standard way to compare the QX30 to other vehicles in its class.

Real-world expectations

The EPA estimates are a good starting point, but real-world fuel economy often varies. Drivers who often drive fast, spend most of their time in city traffic, or often carry passengers and cargo will likely see lower MPG than the official ratings. On the other hand, those who mainly drive on highways and drive conservatively might meet or exceed the EPA’s 33 MPG highway estimate. Watching the car’s instant and average fuel economy numbers can show you how your driving affects fuel use, and you can read owner forums where drivers share their experiences with QX30 MPG across all years.

How it compares

The 2019 Infiniti QX30’s fuel economy is about average for its class. For instance, the BMW X1 gets combined 26 MPG, which is close to the QX30. The Mercedes-Benz GLA 250, which shares many parts with the QX30, also gets around 27 MPG combined. The Lexus UX, a hybrid, does much better, with 42 MPG combined, which is appealing to buyers who care most about efficiency. Someone who likes the QX30 isn’t only thinking about efficiency; its design and premium features are also important. Reviewing all Infiniti fuel economy data helps you see where the QX30 fits into the brand.

Tips to maximize efficiency

Make sure your tires have enough air. Underinflated tires increase rolling resistance, making the engine work harder and use more fuel. Check the tire pressure often and inflate them to the recommended level, which is on a sticker inside the driver’s side doorjamb.

Avoid driving aggressively. Rapid acceleration, hard braking, and high-speed driving all use more fuel. Drive smoothly and keep a consistent speed when you can. Using cruise control on the highway can also help save fuel.

Avoid idling. Letting the engine idle for a long time wastes fuel. If you’ll be stopped for more than a minute or two, turn off the engine. Modern cars start quickly and efficiently, so it’s usually better to turn off the engine than to let it idle.

Reduce extra weight. Carrying things you don’t need can hurt fuel economy. Take any unnecessary items out of the trunk or rear seats. The lighter the car, the less energy it takes to move.

Use the recommended premium fuel. The QX30’s engine is made to run best on premium fuel. Using lower-octane fuel may reduce performance and possibly lower fuel economy. Using the manufacturer’s recommendation makes sure the engine runs at its best.