25 MPG combined for the 2025 Audi Q5 S line quattro 2.0L 4-cyl isn’t going to win any hypermiling contests, but it neatly balances the demands of luxury, performance, and all-weather capability that this vehicle must deliver. Nobody buys a Q5 expecting Prius-level efficiency. They buy it for the prestigious badge, the refined interior, the engaging driving experience, and the security of quattro all-wheel drive. Fuel economy, while a consideration, is less important than these primary desires.

City and highway performance

The EPA estimates the Q5 S line at 23 MPG in the city and 28 MPG on the highway. The city figure reflects the stop-and-go nature of urban driving, where the 2.0-liter turbocharged engine works harder and the automatic start/stop system gets a workout.

The highway number is more indicative of relaxed cruising, where the seven-speed S tronic dual-clutch transmission can settle into higher gears and the efficient engine sips fuel. These numbers are realistic for typical driving conditions, but aggressive acceleration or heavy traffic congestion will certainly impact them negatively.

Remember that “S line” trim indicates a sportier setup, including larger wheels and tires that can slightly compromise fuel efficiency compared to a base Q5.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2025 Audi Q5 S line quattro 2.0L 4-cyl at $2,300. This figure is based on driving 15,000 miles per year and using national average fuel prices. Individual fuel costs will vary depending on driving habits, local fuel prices, and the grade of fuel used.

While the Q5 doesn’t require premium fuel, some drivers report better performance and marginally improved fuel economy when using it.

Real-world expectations

Achieving the EPA’s 25 MPG combined rating requires a sustained effort to drive efficiently. Expect to see figures closer to 22-24 MPG in mixed driving, especially if your commute involves heavy traffic or frequent short trips. A long highway road trip with minimal stops could potentially push you closer to, or even slightly beyond, the 28 MPG highway estimate. Driving style plays a significant role; lead-footed drivers will inevitably see lower numbers, while those with a gentler touch on the accelerator can maximize fuel efficiency. See Q5 MPG across all years for more data.

How it compares

The Q5’s fuel economy is competitive within the luxury compact SUV segment, but other options exist for those prioritizing fuel savings. The Acura RDX, for example, is rated at 23 MPG combined. The BMW X3 sDrive30i achieves 27 MPG combined, although opting for xDrive all-wheel drive drops that figure slightly.

The Volvo XC60 T5 FWD boasts 26 MPG combined, but selecting the Recharge plug-in hybrid variant dramatically improves overall efficiency. These comparisons matter to the Q5 buyer because they highlight the trade-offs between performance, luxury, and fuel economy. Some may be willing to sacrifice a few MPG for the Audi’s quattro all-wheel-drive system or its distinctive styling.

Tips to maximize efficiency

Anticipate traffic flow and avoid sudden acceleration and braking. The Q5’s responsive engine encourages spirited driving, but smooth and gradual inputs will significantly improve fuel economy. Use cruise control on the highway to maintain a consistent speed and minimize unnecessary throttle adjustments.

Ensure your tires are properly inflated to the recommended pressure. Underinflated tires increase rolling resistance, which negatively impacts fuel efficiency. Check tire pressure regularly, especially during temperature changes, as pressure can fluctuate.

Minimize idling time. The Q5’s automatic start/stop system helps reduce fuel consumption at stoplights and in traffic, but avoid excessive idling in other situations. If you know you’ll be stopped for more than a minute or two, turn off the engine.

Reduce unnecessary weight. Remove any extra cargo from the vehicle, as added weight increases the engine’s workload and reduces fuel efficiency. Carrying around items you don’t need will only penalize your MPG.

Consider using the “Efficiency” driving mode, if equipped. This mode optimizes engine and transmission settings for maximum fuel efficiency. Even small adjustments to throttle response and shift patterns can add up over time. Review all Audi fuel economy data to see how different engines compare.