The 2021 Volvo S90 AWD Plug-in Hybrid achieves 30 MPG combined, a great number for a luxury sedan that prioritizes both performance and lower fuel costs. It’s a stylish, well-appointed vehicle offering all-wheel drive and a turbocharged engine with electric motor, appealing to buyers who want to use less gas without sacrificing comfort or driving pleasure.

City and highway performance

The EPA estimates for the S90 PHEV break down to 28 MPG in the city and 31 MPG on the highway. These figures reflect the hybrid system’s ability to optimize fuel consumption in different driving conditions.

The electric motor provides assistance during stop-and-go city driving, improving efficiency compared to solely relying on the gasoline engine. On the highway, the advanced eight-speed automatic transmission helps maintain optimal engine speed for fuel-efficient cruising. Drivers should remember that these figures are estimates; individual results will vary due to driving style, traffic, and environmental conditions.

Annual fuel cost

According to the EPA, the annual fuel cost for the 2021 Volvo S90 AWD PHEV is $1,950. This calculation is based on driving 15,000 miles per year and using the national average fuel prices at the time of the EPA’s testing. Of course, this figure is subject to change based on how much you drive and fluctuating gasoline prices. It’s a useful benchmark when comparing the running costs of different vehicles.

Real-world expectations

While the EPA estimates provide a standardized comparison, real-world fuel economy can vary significantly. The S90 PHEV’s plug-in hybrid nature introduces a key variable: how frequently you charge the battery. If you consistently drive short distances and regularly plug in, maximizing electric-only range, you might see significantly better fuel economy than the EPA estimates. Conversely, if you primarily drive long distances without charging, you’ll rely more on the gasoline engine, potentially resulting in fuel economy closer to a traditional non-hybrid sedan. The S90’s ability to travel a limited distance on electric power alone is key to maximizing efficiency. Consider checking S90 MPG across all years to get a better understanding of historical trends.

How it compares

The S90 PHEV competes in a segment with other luxury sedans offering varying degrees of electrification. The BMW 530e, another plug-in hybrid, achieves an EPA combined rating of 26 MPG. The Mercedes-Benz E350, with a conventional gasoline engine, manages around 25 MPG combined. A Lexus ES 300h hybrid sedan comes in at an impressive 44 MPG combined, but it lacks the plug-in capabilities of the Volvo, offering a different type of hybrid experience. For those interested in more information, all Volvo fuel economy data provides extensive information.

Tips to maximize efficiency

Take full advantage of the S90 PHEV’s electric capabilities by consistently charging the battery. Integrate charging into your daily routine, such as overnight at home or during the workday, to reduce reliance on the gasoline engine and maximize fuel savings.

Drive smoothly and avoid aggressive acceleration or braking. The electric motor provides instant torque, allowing for effortless acceleration without needing to floor the accelerator pedal. Gentle driving not only improves fuel economy but also extends the life of brake components through regenerative braking.

Use the S90’s driving modes to optimize efficiency based on your needs. The “Pure” mode prioritizes electric-only driving, while “Hybrid” mode intelligently balances electric and gasoline power. Experiment to find the mode that best suits your driving conditions and preferences.

Regular maintenance, including proper tire inflation and timely servicing, plays an important role in maintaining optimal fuel efficiency. Underinflated tires increase rolling resistance, while neglecting maintenance can negatively impact engine performance. These factors may seem minor in isolation, but can quickly add up to drastically decreased efficiency.