EPA Fuel Economy: 32 MPG Combined

The 2025 Nissan Altima 2.5L 4-cylinder S trim delivers solid fuel economy for a midsize sedan with an EPA-estimated 32 MPG combined rating. This figure represents a balanced blend of the vehicle’s city and highway performance, making it an efficient choice for drivers who split their time between urban commuting and longer interstate drives. The 2.5L four-cylinder engine paired with a CVT automatic transmission creates a powertrain optimized for consistent fuel efficiency without sacrificing the responsiveness that sedan drivers expect.

For consumers shopping in the midsize sedan segment, the Altima’s 32 MPG combined rating positions it as a practical option for reducing fuel expenses while maintaining everyday reliability. The CVT automatic transmission continuously adjusts gear ratios to keep the engine operating in its most efficient range, which contributes significantly to the overall fuel economy performance. Whether you’re commuting to work, running errands around town, or taking weekend road trips, this fuel efficiency helps stretch your budget further at the pump.

City vs Highway Performance

The 2025 Nissan Altima 2.5L exhibits a notable difference between its city and highway ratings, with the EPA estimating 28 MPG in the city and 38 MPG on the highway. This 10 MPG gap is typical for most vehicles and reflects the efficiency advantages of sustained highway driving compared to the stop-and-go nature of city streets. In urban environments, the engine must repeatedly accelerate from stops, idle at traffic lights, and navigate varying speeds, all of which consume more fuel per mile traveled.

Highway driving maximizes the Altima’s efficiency because the engine operates at lower RPMs at consistent speeds, and the CVT transmission locks into optimal gear ratios for cruising. If your driving involves primarily highway commuting or frequent long-distance travel, you can reasonably expect fuel economy closer to the 38 MPG highway rating. Conversely, if you navigate congested city streets and urban highways regularly, your real-world results will trend closer to the 28 MPG city figure. Most drivers experience results somewhere between these two numbers depending on their specific driving patterns.

Annual Fuel Cost

Understanding your potential annual fuel costs helps with budgeting and comparing the Altima to other vehicles. Using the EPA’s standard assumptions of 15,000 miles per year and a gasoline price of $3.50 per gallon, here’s the calculation:

15,000 miles ÷ 32 MPG = 468.75 gallons per year
468.75 gallons × $3.50 per gallon = $1,640.63 annual fuel cost

This means you can budget approximately $1,641 annually for fuel. Keep in mind that actual costs vary based on gas prices in your area and your personal driving habits. If you drive more highway miles, your actual fuel costs could be lower since the Altima achieves better mileage at highway speeds. If you drive predominantly in cities or frequently sit in traffic, costs may be higher than this estimate.

Real-World MPG Expectations

While EPA ratings provide a standardized benchmark, real-world fuel economy depends on numerous factors including driving habits, road conditions, vehicle maintenance, and weather. Most 2025 Nissan Altima 2.5L owners report combined fuel economy within 1-3 MPG of the EPA estimate. Some drivers achieve numbers exceeding the EPA rating through careful driving techniques, while others see slightly lower figures during winter months or when driving in mountainous terrain.

To maximize your actual fuel economy, maintain proper tire pressure as recommended in your owner’s manual, as underinflated tires increase rolling resistance and reduce efficiency. Avoid aggressive acceleration and hard braking, which waste fuel. Remove unnecessary weight from your vehicle, and reduce idling time whenever possible. Regular engine maintenance, including oil changes and air filter replacements, ensures your Altima operates at peak efficiency. Planning routes to avoid heavy traffic also helps you maintain the steady speeds where this sedan performs best.

How It Compares

In the midsize sedan category, the 2025 Nissan Altima’s 32 MPG combined rating competes well with similar vehicles. The 2025 Toyota Camry with a 2.5L engine achieves approximately 32-33 MPG combined depending on the specific model year and transmission type. The 2025 Honda Accord with comparable powertrain delivers roughly 33 MPG combined. The 2025 Hyundai Sonata with a 2.5L engine offers around 32 MPG combined. These vehicles demonstrate that the Altima delivers competitive fuel efficiency within its class without requiring hybrid or turbocharged powertrants that might increase complexity or maintenance costs.

Tips to Maximize Efficiency

• Maintain Consistent Speed: The CVT transmission performs best at steady speeds, so highway cruising maximizes efficiency more than frequent acceleration and deceleration.
• Check Tire Pressure Monthly: Properly inflated tires reduce rolling resistance. Refer to the driver’s door jamb for the recommended PSI, not the sidewall marking.
• Use Cruise Control on Highways: Cruise control maintains consistent speed and throttle position, preventing the small inefficiencies of manual speed management.
• Minimize Idling: Modern engines use more fuel sitting idle than restarting, so turn off the engine when stopped for more than 30 seconds.
• Keep Up with Maintenance: Regular oil changes with the correct viscosity grade and clean air filters help the engine operate efficiently.

Frequently Asked Questions

Does the 2025 Altima 2.5L require premium gasoline?
No, the 2025 Nissan Altima 2.5L S runs on regular unleaded gasoline. Using premium fuel provides no additional benefits and unnecessarily increases your fuel costs.

Can I achieve better than 38 MPG on the highway?
While the EPA rates highway performance at 38 MPG, some drivers report slightly higher figures through hypermiling techniques or on particularly favorable highway conditions. However, 38 MPG represents realistic highway efficiency under normal driving conditions.

How does winter driving affect fuel economy?
Cold weather typically reduces fuel economy by 10-15% because engines require more time to reach optimal operating temperature and winter-grade fuel has different properties. Expect slightly lower MPG during winter months.

The 2025 Nissan Altima 2.5L S offers practical fuel economy that balances everyday efficiency with the performance and comfort expected in a midsize sedan. With a 32 MPG combined rating and a straightforward gasoline engine, this vehicle delivers reliable value for drivers seeking predictable operating costs without sacrificing driving dynamics or interior space.