Mazda CX-90 MPG and Fuel Tank Size | All Model Years

mazda cx-90

At Sport Mazda North, we know that fuel efficiency and driving range are top priorities when choosing a three-row SUV. The Mazda CX-90 stands out in its class by combining strong performance with impressive fuel economy—something many large SUVs struggle to balance. Below, we break down MPG ratings and fuel tank sizes for every Mazda CX-90 model year, starting with the most recent models and grouping years where specs remain consistent.

2026 Mazda CX-90 MPG and Fuel Tank Size

The 2026 Mazda CX-90 continues the same efficient formula introduced when the model first launched, with no major changes to fuel economy or tank size.

  • EPA-estimated MPG: 25 MPG combined
  • Fuel tank size: 18.5–19.5 gallons (varies by engine output)
  • Estimated range: 450+ miles depending on driving conditions

Mazda’s mild-hybrid inline-six engine remains standard, helping maintain strong efficiency for a three-row SUV. The consistency here reflects Mazda’s commitment to refining—not overhauling—a proven powertrain.

2025 Mazda CX-90 MPG and Fuel Tank Size

For 2025, the CX-90 carries over identical fuel economy and tank specifications.

  • MPG:
    • 24 city / 28 highway (most trims)
    • 23 city / 28 highway (higher-output “S” trims)
    • 25 MPG combined
  • Fuel tank size:
    • 18.5 gallons (standard output engines)
    • Up to ~19.5 gallons (high-output trims)
  • Estimated range: Up to ~460–540 miles depending on configuration

Plug-in hybrid (PHEV) models also remain available, offering up to 56 MPGe combined when using electric power, while still returning about 25 MPG in gas-only operation.

2024 Mazda CX-90 MPG and Fuel Tank Size (First Model Year)

The 2024 Mazda CX-90 marked the debut of this all-new three-row SUV, replacing the CX-9—and it introduced the same fuel efficiency figures still used today.

  • MPG:
    • 24 city / 28 highway
    • 25 MPG combined
  • Fuel tank size:
    • 18.5 gallons (standard engine)
    • ~19.5 gallons (high-output engine)
  • Estimated range: 450+ miles

Mazda designed the CX-90 from the ground up with efficiency in mind, using a rear-wheel-drive-based platform and electrified powertrains to maximize both performance and MPG.

Mazda CX-90 MPG Overview Across All Years

Since its introduction, the Mazda CX-90 has maintained remarkably consistent fuel economy numbers across all model years:

  • Combined MPG: ~25 MPG
  • City MPG: ~23–24 MPG
  • Highway MPG: ~28 MPG
  • Fuel tank capacity: 18.5–19.5 gallons

This consistency is intentional. Mazda engineered the CX-90 with a long-term platform and powertrain strategy, meaning drivers benefit from proven efficiency without worrying about major year-to-year fluctuations.

What Impacts MPG on the Mazda CX-90?

While official MPG ratings stay consistent, real-world fuel economy can vary based on a few key factors:

  • Engine output: Higher-performance “S” trims trade slight efficiency for more power
  • Driving habits: Highway driving typically delivers better MPG than city driving
  • Load and passengers: A full cabin or cargo can slightly reduce efficiency
  • Weather conditions: Cold temperatures can impact fuel economy

At Sport Mazda North, we help drivers choose the right CX-90 configuration based on how they actually drive—not just the numbers on paper.

How the CX-90 Stands Out in Its Class

Compared to other three-row SUVs, the Mazda CX-90 delivers competitive fuel efficiency while offering a more engaging driving experience. Many competitors prioritize size or power at the expense of MPG, but Mazda’s engineering approach keeps efficiency front and center.

Key advantages include:

  • Standard mild-hybrid technology across gas models
  • Available plug-in hybrid for maximum efficiency
  • Strong highway MPG for long-distance driving
  • Impressive driving range exceeding 450 miles per tank

This balance makes the CX-90 a smart choice for families, commuters, and road trip drivers alike.

Conclusion

The Mazda CX-90 has delivered consistent, class-competitive fuel efficiency since its debut—and that’s exactly what makes it such a strong long-term choice. Whether you’re looking at a 2024, 2025, or 2026 model, you can expect around 25 MPG combined and a fuel tank capacity of up to nearly 20 gallons, giving you the range and confidence to go further between fill-ups.

At Sport Mazda North, we stay up to date on every Mazda model year so you don’t have to. If you’re considering a CX-90, our team can walk you through the differences between trims, powertrains, and efficiency options to help you find the perfect fit for your lifestyle.