The 2024 Volvo S90 B6 AWD achieves 25 MPG combined, reflecting its focus as a refined, comfortable, and technologically advanced sedan. It’s not engineered for maximum fuel economy, but for those who prioritize Scandinavian design, a quiet driving experience, and all-weather confidence, the S90’s fuel consumption is a reasonable trade-off.

City and highway performance

The EPA estimates the S90 B6 at 22 MPG in the city and 31 MPG on the highway. The city figure is respectable for a large sedan with all-wheel drive, reflecting the efficiency of the 2.0-liter four-cylinder engine that uses a turbocharger, a supercharger, and a mild hybrid system. The highway MPG shows the S90’s comfortable cruising ability. This is a car built for long journeys, and the highway fuel economy demonstrates its capabilities on extended road trips.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2024 Volvo S90 B6 AWD is $2,300. This figure is based on driving 15,000 miles per year and using national average fuel prices. Individual fuel costs will vary based on driving habits, local fuel prices, and the type of fuel used. The S90 does not require premium fuel, which contributes to some savings at the pump.

Real-world expectations

While the EPA provides a standardized estimate, real-world fuel economy often differs. Drivers who frequently accelerate quickly or spend a significant amount of time in stop-and-go traffic may find their fuel economy closer to the city estimate. Alternatively, those who primarily drive on the highway at moderate speeds could see numbers closer to, or even slightly exceeding, the 31 MPG highway estimate. The B6 powertrain is generally responsive, but drivers should be mindful of throttle input to optimize efficiency.

How it compares

Compared to its rivals, the S90 B6’s fuel economy is competitive, but not class-leading. The BMW 530i xDrive, with its 2.0-liter turbocharged four-cylinder, achieves a similar 27 MPG combined. However, the Mercedes-Benz E350 4MATIC, with its mild-hybrid engine, also reaches about 25 MPG combined. The Audi A6 45 TFSI quattro lands right around 26 MPG combined. For the S90 buyer, the slightly lower fuel economy is likely offset by the Volvo’s unique styling, focus on safety, and reputation for comfort and refinement. These buyers are willing to accept slightly lower MPG than some competitors because they truly want the Volvo experience.

Tips to maximize efficiency

Gentle acceleration is key to maximizing fuel economy in the S90 B6. The turbocharged and supercharged engine delivers ample power, but smooth, deliberate throttle inputs will help the mild hybrid system operate most effectively and reduce fuel consumption. Avoid abrupt starts and hard braking whenever possible.

Use the S90’s driving modes to your advantage. The “Eco” mode optimizes various vehicle settings, including throttle response and transmission shift points, for maximum fuel efficiency. While it may slightly reduce performance, it can make a noticeable difference on longer journeys.

Proper tire inflation plays a critical role in fuel economy. Regularly check and maintain the recommended tire pressure listed on the driver’s side doorjamb. Underinflated tires increase rolling resistance, which reduces fuel efficiency. Consult S90 MPG across all years for the correct inflation.

Reduce unnecessary weight in the vehicle. Excess cargo adds to the overall weight and increases the amount of energy required to move the car. Removing any items that are not essential can slightly improve fuel economy. Consider comparing all Volvo fuel economy data across models for reference.

Avoid excessive idling. If you anticipate being stopped for more than a minute or two, turn off the engine. Modern engines are designed to restart quickly and efficiently, and idling for extended periods wastes fuel and contributes to emissions. The S90 also has a start/stop function you can try.