25 MPG combined, particularly considering its reliable Mazda 4WD PHEV architecture, positions the 2025 CX-90 4WD PHEV 2.5L 4-cyl as a strong choice for families who demand both executive-level refinement and genuine practicality. This isn’t a vehicle purely for sipping fuel, nor is it a gas-guzzling brute; it strikes a carefully engineered middle ground, offering a powertrain that acknowledges modern efficiency demands without compromising Mazda’s characteristic driving dynamics or the versatility expected of a three-row SUV. The target buyer for this CX-90 variant is likely a professional couple or a growing family, who appreciate the design, premium interior materials, and a composed ride. They’re not looking for the absolute cheapest-to-run vehicle, but they expect a responsible return on their fuel investment, especially given the vehicle’s substantial size and all-wheel-drive capability. For them, 25 MPG combined is a balanced offering, an improvement over traditional gasoline-only large SUVs, sweetened by the PHEV’s electric-only range for daily commutes and errands.

City and highway performance

Diving deeper into the EPA figures, the 2025 Mazda CX-90 PHEV achieves 24 MPG in city driving and a slightly higher 27 MPG on the highway. This marginal difference between city and highway efficiency is characteristic of plug-in hybrid powertrains, especially those with a capable electric-only range. In city environments, the CX-90 PHEV can use its electric motor for propulsion at lower speeds and during stop-and-go traffic, significantly reducing gasoline consumption. The automatic (S8) transmission also plays a role, smoothly managing power delivery from both the 2.5L 4-cylinder engine and the electric motor, optimizing efficiency across various driving conditions. On the highway, where sustained speeds mean less reliance on electric-only operation and more continuous engine use, the efficiency still holds strong at 27 MPG, a respectable number for a large, comfortable SUV designed for longer journeys. This SUV rewards a smooth, consistent driving style with consistent fuel returns.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,300 for the 2025 Mazda CX-90 4WD PHEV 2.5L 4-cyl. This figure is derived from a standardized calculation based on driving 15,000 miles per year, split between city and highway driving, and using national average fuel prices. This $2,300 is specifically for gasoline expenses, assuming the vehicle is operated in hybrid mode after its all-electric range is depleted. This estimate does not factor in the cost of electricity, which, if used for daily charging, would significantly reduce gasoline consumption and thus the actual out-of-pocket fuel expenses. For owners who diligently plug in their CX-90 PHEV, particularly for shorter commutes, their actual annual gasoline expenditure could be substantially lower than this EPA estimate. The $2,300 figure serves as a baseline for comparison against non-PHEV vehicles, highlighting the potential for savings through the plug-in hybrid technology.

Real-world expectations

In real-world driving scenarios, owners of the 2025 Mazda CX-90 4WD PHEV 2.5L 4-cyl can expect its fuel economy to be highly variable, depending fundamentally on their charging habits and typical daily driving distances. The 25 MPG combined rating represents the vehicle’s performance once the electric-only range is exhausted. For a driver with a short commute, say 20-30 miles round trip, and convenient access to charging at home or work, the CX-90 PHEV could operate almost exclusively on electricity for daily errands, consuming very little gasoline for weeks at a time. This is where the value of the PHEV system shines for many owners. However, a driver who rarely charges and frequently embarks on long highway trips will see figures closer to the 27 MPG highway rating, or even slightly lower depending on speed and load. These buyers understand that the plug-in aspect is a powerful tool to manage fuel costs, and active engagement with charging infrastructure is key to optimizing their ownership experience. This is not a set-it-and-forget-it vehicle if maximum efficiency is the goal.

How it compares

The 2025 Mazda CX-90 4WD PHEV’s 25 MPG combined, along with its available electric range, places it competitively within the premium three-row SUV segment, especially against other electrified options. Consider the Volvo XC90 Recharge T8 eAWD, a direct competitor in terms of segment and electrification, which delivers a similar 27 MPG combined when operating as a hybrid. For buyers prioritizing the driving experience and premium interior, the CX-90 offers a distinct Mazda interpretation. Another notable rival is the Kia Sorento PHEV AWD, which, while slightly smaller and positioned differently, achieves a higher 34 MPG combined. However, the CX-90 offers a more upscale presence and larger dimensions, appealing to a different tier of buyer. Traditional gasoline-only competitors like the Acura MDX SH-AWD, which manages around 21 MPG combined, highlight the CX-90 PHEV’s clear advantage in long-term fuel expenditure. Even against other large SUVs with hybrid powertrains, such as the Toyota Grand Highlander Hybrid AWD, which hits 36 MPG combined, the CX-90 PHEV carves out its niche by offering a more premium, driver-centric experience with the added flexibility of plug-in capability. The decision here often boils down to a blend of outright efficiency, driving dynamics, and perceived luxury, where the CX-90 holds its own with its unique blend of attributes. For a complete overview of all CX-90 MPG across all years, our database provides specific figures.

Tips to maximize efficiency

To truly get the most out of your 2025 Mazda CX-90 4WD PHEV’s fuel economy, consistent charging is important. Make it a habit to plug in whenever the vehicle is parked, especially overnight or during work hours. Maximize the use of its electric-only range for daily commutes and short trips, minimizing gasoline consumption entirely for these common journeys.

Use the vehicle’s different drive modes intelligently. Engage EV mode for city driving to prioritize electric power, and allow the hybrid system to manage power delivery efficiently for longer trips. The CX-90’s powertrain is designed to optimize energy flow, and using the right mode for the right situation amplifies its inherent efficiencies.

Maintain consistent and smooth driving habits. Avoid aggressive acceleration and sharp braking, which force the 2.5L engine to work harder and the regenerative braking system to recover less energy. Anticipate traffic and coast whenever safely possible, allowing the electric motor to recuperate kinetic energy back into the battery.

Keep your tires properly inflated to the recommended pressure. Underinflated tires increase rolling resistance, forcing the engine and electric motor to expend more energy to move the vehicle. Regular checks ensure optimal efficiency and extend tire life.