25 MPG combined makes the 2026 Mazda CX-90 4WD 3.3L 6-cyl a segment outlier. This isn’t just another three-row crossover; it’s a vehicle for drivers who appreciate a blend of performance and efficiency, those who want more than appliance-like transportation without sacrificing practicality. Owners of the CX-90 prioritize an engaging driving experience, a premium interior, and a strong sense of Japanese craftsmanship. They understand that a larger, upscale vehicle capable of seating seven and tackling varied road conditions will inherently consume more fuel than a compact sedan, but they expect that consumption to be reasonable, and the CX-90 delivers on that expectation with its mild-hybrid inline-six powertrain.

City and highway performance

Looking at the EPA ratings, the 2026 Mazda CX-90 4WD 3.3L 6-cyl achieves 23 MPG in city driving and a respectable 28 MPG on the highway. These figures show the vehicle’s optimized powertrain. The 3.3-liter inline-six, bolstered by Mazda’s mild-hybrid system, excels at both urban maneuverability and open-road cruising. In stop-and-go city traffic, the electric motor assists the gasoline engine, smoothing out acceleration and reducing fuel consumption during frequent starts. This results in the 23 MPG city rating, a strong showing for a vehicle of its size and capability. When on the highway, the engine’s efficiency truly shines. The 28 MPG highway figure is impressive for a three-row SUV, a clear benefit of the inline-six’s balanced design and the smooth-shifting 8-speed automatic transmission. This ensures that long road trips are not only comfortable but also economical for the segment, making it an ideal companion for families who value weekend excursions and extended vacations.

Annual fuel cost

The EPA estimates an annual fuel cost of $1,750 for the 2026 Mazda CX-90 4WD 3.3L 6-cyl. This figure is derived from a standardized calculation method, assuming 15,000 miles driven per year with a mix of 55% city and 45% highway driving, and using national average fuel prices. It provides a useful benchmark for consumers to understand the long-term running costs associated with the vehicle. The $1,750 cost reflects the CX-90’s ability to balance its premium aspirations with sensible operational expenses. For a vehicle that offers a refined driving experience, genuine all-wheel drive traction, and ample space for a family, this annual fuel cost is competitive, further reinforcing its appeal to buyers who appreciate value alongside luxury.

Real-world expectations

While EPA estimates provide a baseline, true real-world fuel economy can fluctuate based on driving style, traffic conditions, terrain, elevation, and climate control usage. For the 2026 Mazda CX-90, drivers who practice smooth acceleration and anticipate traffic flow will consistently approach or even slightly exceed the EPA’s 25 MPG combined rating. Aggressive driving, characterized by heavy throttle inputs and sudden braking, will naturally reduce efficiency, likely bringing combined figures closer to the 22-23 MPG range. Factors like frequently using the all-wheel-drive system in adverse weather, towing a trailer, or carrying a full load of passengers and cargo will also incrementally increase fuel consumption. However, the CX-90’s mild-hybrid system does an excellent job of mitigating some of these losses, making it quite resilient to varied driving conditions compared to non-hybrid competitors. Owners buying this CX-90 often have longer commutes or plan regular family road trips where the highway efficiency is a significant factor in their satisfaction.

How it compares

The 2026 Mazda CX-90 4WD 3.3L 6-cyl positions itself in the three-row SUV landscape, offering a blend of premium feel, engaging dynamics, and efficient performance. When stacked against its primary rivals, its 25 MPG combined rating often stands out. Consider the Acura MDX SH-AWD, a direct competitor in terms of premium aspirations, its 3.5-liter V6 typically achieves around 21 MPG combined (19 City / 26 Highway). The Genesis GV80 3.5T AWD, another luxury SUV with a focus on design, yields approximately 20 MPG combined (18 City / 23 Highway). Even mainstream rivals like the Kia Telluride AWD with its V6 engine often hover around 21 MPG combined (19 City / 24 Highway). The CX-90’s mild-hybrid inline-six architecture gives it a clear advantage in efficiency without sacrificing power or refinement. This makes it particularly attractive to buyers who are cross-shopping between premium brands but are unwilling to compromise on running costs. For more details on all Mazda fuel economy data, you can visit our dedicated page, and for specific CX 90 MPG across all years, explore our model page.

Tips to maximize efficiency

To get the most out of your 2026 Mazda CX-90’s fuel economy, consider adopting smoother driving habits. Accelerate gently and try to maintain a consistent speed, especially on the highway, as sudden bursts of speed consume significantly more fuel.

Regular maintenance is important for optimal fuel efficiency. Ensure your tires are properly inflated to the manufacturer’s recommended pressure, as underinflated tires increase rolling resistance and lead to higher fuel consumption. Adhere to the recommended service schedule, including oil changes and air filter replacements.

Anticipate traffic and road conditions to reduce unnecessary braking and acceleration. Looking ahead and lifting off the accelerator earlier when approaching a red light or slowing traffic allows the mild-hybrid system to more effectively regenerate energy and reduce fuel use.

Use the CX-90’s various driving modes intelligently. While “Sport” mode offers a more engaging drive, it can also lead to more aggressive shifting and higher RPMs, diminishing fuel economy. For daily commuting and highway cruising, “Normal” or “Off-Road” (when appropriate) modes are generally more efficient.

Minimize carrying excessive weight in the vehicle and consider removing roof racks or cargo carriers when not in use. Any additional drag or weight forces the engine to work harder, directly impacting your MPG figures.