27 MPG combined won’t set any records, but it’s a respectable figure for the 2018 Volvo XC90 T8 eAWD Plug-in Hybrid. Buyers considering this luxurious three-row SUV aren’t necessarily prioritizing ultimate fuel efficiency. They’re seeking a blend of Scandinavian design, advanced safety features, ample family space, and the added benefit of limited all-electric driving. The T8 offers a unique ownership experience, and while its MPG might not top the charts, it’s a good overall package.

City and highway performance

The EPA estimates for the 2018 XC90 T8 put its city fuel economy at 26 MPG, only slightly lower than its highway rating of 30 MPG. This relatively small gap is due to the hybrid powertrain’s characteristics. In stop-and-go city driving, the electric motor handles much of the low-speed propulsion, reducing reliance on the gasoline engine and boosting efficiency.

On the highway, the gasoline engine takes on a larger role, but its inherent efficiency, combined with the electric motor providing supplemental power, still allows for a competitive MPG figure. Drivers in suburban environments with mixed driving conditions will likely see numbers closer to the combined rating.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,150 for the 2018 Volvo XC90 T8 eAWD Plug-in Hybrid. This calculation assumes 15,000 miles of driving per year, with fuel prices based on national averages. Individual fuel costs will depend on driving habits, local fuel prices, and how often the T8’s plug-in charging capability is used. Drivers who consistently charge the battery and maximize electric-only driving will find that their annual fuel expenses fall below that $2,150 estimate. Those who primarily rely on the gasoline engine may see higher costs.

Real-world expectations

While the EPA figures provide a solid baseline, real-world fuel economy for the XC90 T8 can change considerably. The biggest factor is how often it’s plugged in. Charging the battery regularly can significantly increase the percentage of miles driven on electric power, leading to much better overall efficiency than if the T8 is treated solely as a traditional hybrid.

Driving style also plays a major role. Aggressive acceleration and high-speed cruising will negatively impact fuel economy, while smooth, deliberate driving will help get closer to the EPA estimates. The T8’s “Pure” mode prioritizes electric driving to extract maximum efficiency and can have a major impact to fuel savings. Before purchasing, check XC90 MPG across all years to compare model experiences.

How it compares

Compared to other luxury three-row SUVs with hybrid or plug-in hybrid powertrains, the 2018 XC90 T8 is in a competitive area. The Acura MDX Sport Hybrid, for example, achieves an EPA-estimated 27 MPG combined, closely matching the XC90. The Lexus RX 450hL, another hybrid option, comes in around 29 MPG combined. These MPG figures are relevant to XC90 buyers because they’re likely cross-shopping these vehicles, but the chance to drive all-electric miles is a great benefit of the XC90.

Tips to maximize efficiency

Use the “Pure” driving mode whenever possible. This setting prioritizes all-electric driving and can significantly improve fuel economy, especially on shorter trips. Be mindful of the battery’s charge level, as switching to “Hybrid” mode will engage the gasoline engine.

Precondition the cabin while the XC90 is plugged in. Using the Volvo On Call app, you can heat or cool the interior before starting to drive. This reduces the drain on the battery and gasoline engine once on the road, preserving energy and improving fuel economy.

Drive smoothly and avoid aggressive acceleration and braking. The XC90 T8 is equipped with regenerative braking, which captures energy during deceleration and recharges the battery. Gentle braking maximizes this effect, boosting efficiency.

Maintain proper tire pressure. Underinflated tires increase rolling resistance, forcing the engine/electric motor to work harder and thus reducing fuel economy. Check tire pressure regularly and inflate them to the recommended levels.

Minimize unnecessary weight. Excess cargo adds to the vehicle’s mass and reduces fuel efficiency. Remove any items not needed regularly, such as rarely used sports equipment or heavy tools. You can view all Volvo fuel economy data on FuelEconomyHub.com