26 MPG combined isn’t going to win any awards, but for the 2018 Nissan Altima 3.5L V6, it represents a specific choice. This isn’t the Altima for the hyper-miler; it’s the Altima for the driver who wants smooth, effortless power in a package that’s still relatively practical and affordable. It’s for the V6 enthusiast who appreciates the Altima’s blend of comfort and understated sportiness.

City and highway performance

The EPA estimates 22 MPG in the city and 32 MPG on the highway for the 2018 Nissan Altima equipped with the 3.5L V6 and continuously variable automatic transmission (AV-S7). While 22 MPG around town is certainly respectable, the 32 MPG highway figure may surprise some, given the engine’s displacement. This highlights the transmission’s ability to keep the engine in its most efficient operating range at cruising speeds. However, aggressive acceleration and frequent stop-and-go driving will impact those numbers, bringing the highway figure closer to the combined rating, and the city number down noticeably.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2018 Nissan Altima 3.5L V6 at $1,700. This figure is based on driving 15,000 miles per year, with 55% of those miles driven in the city and 45% on the highway. It also assumes national average fuel prices, which fluctuate throughout the year. Your actual fuel cost could be higher or lower depending on your driving habits, location, and the prevailing gasoline prices. The EPA figure offers a solid benchmark for comparison.

Real-world expectations

While the EPA figures provide a good baseline, real-world fuel economy for the 2018 Nissan Altima 3.5L V6 can vary. Drivers who prioritize smooth acceleration and anticipate traffic flow will likely see results closer to the EPA estimates. However, those who frequently enjoy the engine’s responsive power will naturally observe a dip in fuel efficiency. Factors like tire pressure, vehicle maintenance, and even the use of air conditioning can also play a role. The type of gasoline used, premium versus regular, will make no difference; the 3.5 liter V6 is designed to run on 87 octane fuel.

How it compares

The fuel economy of the 2018 Nissan Altima 3.5L V6 positions it within a specific niche in the mid-size sedan segment. Consider the 2018 Toyota Camry XSE V6, which offers similar performance but achieves slightly better 25 MPG combined. The Honda Accord 2.0T offers comparable power and fuel economy around 26 MPG combined with only a four-cylinder engine and a more modern chassis. For those who want all-wheel drive, the Subaru Legacy 3.6R offers strong performance with 23 MPG combined, making the Nissan appear even more competitive overall.

The ALTIMA MPG across all years demonstrates how the 2018 V6 model sits within the evolution of the brand. The Altima V6 is for someone who values the instant power of a larger displacement engine.

Tips to maximize efficiency

The most important factor for maximizing fuel economy in the 2018 Altima 3.5L V6 is smooth, deliberate acceleration. The engine is powerful enough to get up to speed quickly without needing to press the accelerator pedal too hard. Being gentle with the throttle preserves fuel and makes for a more pleasant driving experience.

The Altima’s continuously variable transmission (CVT) is designed to keep the engine operating in its most efficient range. Take advantage of this by maintaining a steady speed on level ground, allowing the transmission to “settle” into its optimal ratio. Avoid sudden changes in speed, which force the CVT to adjust and can negatively impact fuel consumption.

Regular maintenance is also critical. Keep your tires properly inflated to the recommended pressure, as underinflated tires increase rolling resistance and reduce fuel economy. Ensure that the engine receives regular oil changes with the correct viscosity oil, as this aids in proper lubrication and efficiency.

Minimize aerodynamic drag by removing unnecessary items from the roof or trunk. Roof racks and cargo carriers can significantly increase wind resistance, particularly at highway speeds. The Altima is a large enough sedan that storing items inside the vehicle shouldn’t be an issue for day-to-day driving.

Consider using cruise control on long highway drives. This will help maintain a consistent speed, which can lead to improved fuel economy compared to varying your speed manually. Be sure to disengage cruise control when encountering traffic or changing road conditions. Don’t forget to check all Nissan fuel economy data if you’re shopping for even more efficient Nissan models.