31 MPG combined makes the 2025 Nissan Altima 2.5L 4-cylinder a strong option for a specific type of buyer: the pragmatic commuter or small family in search of reliable, efficient transportation without unnecessary frills. This isn’t a performance sedan, nor does it attempt to be. Instead, it offers a well-defined niche, with predictable, low-stress motoring and fuel economy that respects a tight budget. The Altima, in this specification, gets you from point A to point B economically, consistently, and without drama. Its mission is clear, and its combined MPG figure articulates that mission unequivocally.

City and highway performance

The Altima’s efficiency is tailored for varied driving conditions. The 27 MPG in city driving is a strong showing for a mainstream mid-size sedan. Much of this urban frugality stems from the Altima’s continuously variable transmission (CVT), which, in this application, is tuned for smoothness and efficiency rather than spirited acceleration. Nissan has decades of experience with CVTs, and while some may lament the lack of traditional gear shifts, the benefit in stop-and-go traffic is undeniable. The powertrain manages to keep the 2.5L engine in its most efficient operating range, mitigating the typical fuel consumption spikes associated with city driving. On the highway, the Altima truly shines, achieving an impressive 38 MPG. This figure is a result of the vehicle’s aerodynamic design, the efficient character of the 2.5-liter four-cylinder engine, and the CVT’s ability to maintain incredibly low RPMs at cruising speeds. Long-distance commuters, who frequently spend hours on the open road, will find this highway rating particularly appealing. This high figure contributes significantly to the overall combined MPG, making the Altima a standout for those who regularly travel extended distances.

Annual fuel cost

The EPA estimates an annual fuel cost of $1,400 for the 2025 Nissan Altima 2.5L 4-cyl. This figure is calculated based on 15,000 miles of driving per year, split between city and highway conditions according to EPA weighting, and assumes national average fuel prices. For a vehicle targeting value-conscious buyers, this $1,400 per year represents a significant appeal. It translates to manageable monthly fuel expenses, a key consideration for families and individuals prioritizing financial predictability. While fuel prices fluctuate, this established benchmark provides a reliable indicator of the Altima’s running costs. This accessible annual cost solidifies the Altima’s position as a sensible, economical choice in the mid-size sedan segment, directly addressing one of the primary concerns of its target demographic.

Real-world expectations

While EPA ratings are excellent benchmarks, real-world fuel economy often varies. The 2025 Altima with the 2.5L engine typically performs quite close to its EPA estimates, particularly for drivers with a smooth, consistent driving style. Expect to achieve the 38 MPG highway rating regularly if you maintain consistent speeds on flat terrain. Aggressive acceleration, heavy braking, and excessive idling will, as with any vehicle, diminish these figures. However, the Altima’s powertrain characteristics, specifically the CVT, are inherently designed to encourage a smoother driving style by discouraging abrupt inputs. For those who frequently drive in varied conditions, a mix of suburban streets, occasional city grids, and regular highway commutes, the combined 31 MPG is a highly achievable target. Sustained driving at speeds exceeding 75 mph will see a slight dip from the highway rating, and colder climates or frequent use of air conditioning will also impact efficiency. For the typical Altima buyer, who prioritizes predictability over blistering performance, the real-world fuel economy largely aligns with expectations, making it a dependable partner for daily tasks.

How it compares

The 2025 Nissan Altima 2.5L 4-cyl enters a competitive arena, but its fuel economy holds its own. When stacked against key rivals, the Altima’s 31 MPG combined is a strong contender. The Honda Accord 1.5T, for instance, typically achieves around 32 MPG combined (30 City/38 Highway), putting it nearly neck-and-neck with the Altima. The Toyota Camry LE with its 2.5L 4-cylinder engine generally offers 32 MPG combined (28 City/39 Highway), again offering very similar numbers. Even the Hyundai Sonata SEL, which also uses a 2.5L four-cylinder, posts figures around 31 MPG combined (28 City/38 Highway). What these comparisons illustrate is not a runaway victory for the Altima, but rather its strong positioning within a very tightly contested segment for efficiency. For the Altima buyer, who often cross-shops these very vehicles, the negligible differences in MPG mean that other factors, such as price, features, or ride comfort, will often tip the scales. The Altima’s competence here means fuel economy won’t be a deal-breaker. It simply affirms the vehicle’s mission: delivering efficient, practical transportation that aligns perfectly with all Nissan fuel economy data trends for their mainstream offerings. For an even closer look at ALTIMA MPG across all years, our comprehensive database offers detailed historical context.

Tips to maximize efficiency

To consistently hit or even exceed the Altima’s EPA ratings, focus on smooth inputs. The CVT responds best to gradual acceleration and deceleration, allowing the engine to remain in its most efficient zone without needing to ‘downshift’ or ‘upshift’ abruptly.

Maintain proper tire pressure. Underinflated tires significantly increase rolling resistance, forcing the engine to work harder. Check your Altima’s tire pressure regularly, especially before long highway journeys, to ensure optimal efficiency and safety.

Plan your routes to avoid heavy traffic and excessive idling. The Altima’s 27 MPG city rating is good, but idling or stop-and-go gridlock will invariably eat into those savings. Using navigation apps to anticipate and bypass congestion can make a noticeable difference.

Limit unnecessary weight in the trunk or cabin. While a few extra pounds won’t drastically alter overall fuel economy, habitually carrying heavy, non-essential items does contribute to increased fuel consumption over time, particularly in city driving.

Use cruise control on the highway. Maintaining a consistent speed prevents unnecessary acceleration and braking, which are major fuel consumers. The Altima’s adaptive cruise control, if equipped, can be particularly effective in maintaining efficiency in varying traffic flows.