Nissan · 2018
Altima 2.5L 4-cyl
✓ EPA Verified
Regular Gasoline
Midsize Cars
Front-Wheel Drive
City
27
MPG
Combined
31
MPG
Highway
38
MPG
Annual Fuel Cost
$1,400
Based on 15,000 miles/year · EPA estimates
vs avg gas vehicle
$750
saved per year
Class Comparison — Midsize Cars
Top 34%
Better than 66 out of 100 vehicles in its class for fuel efficiency.
This vehicle: 31 MPG
This vehicle
31 MPG
Class average
35 MPG
Class lowest
13 MPG
EPA Energy & Environment Scores
7
Energy Score
Out of 10
7
GHG Score
Out of 10
287 lbs
Annual CO₂
g/mile tailpipe CO₂
No
Start-Stop
Not equipped
Vehicle Specifications
Engine2.5L 4-cyl
TransmissionAutomatic (variable gear ratios)
DriveFront-Wheel Drive
Fuel TypeRegular Gasoline
Vehicle ClassMidsize Cars
Start-StopNo
EPA Vehicle ID39503

31 MPG combined isn’t going to set any records, but for the 2018 Nissan Altima 2.5L, it provides reliable, comfortable, and affordable transportation. This car is built for commuters, small families running errands, and anyone who prioritizes practicality. It’s not trying to be a sports sedan or a luxury vehicle; it’s aiming squarely at the heart of the mid-size market, where fuel economy is a key consideration.

City and highway performance

The Altima’s 27 MPG in the city reflects stop-and-go traffic. The continuously variable transmission (CVT), while optimized for efficiency, can sometimes feel a little sluggish when quick acceleration is needed from a standstill. That said, the engine provides adequate power for merging and navigating urban environments. On the open road, the Altima shines, achieving an impressive 38 MPG on the highway. This is where the CVT truly excels, keeping the engine at its optimal RPM range for maximum fuel efficiency during sustained cruising. Long road trips are where this car earns its keep.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2018 Nissan Altima 2.5L at $1,400. This figure is based on driving 15,000 miles per year, with a roughly even split between city and highway driving, and using national averages for fuel prices. Your actual fuel costs will vary depending on your driving habits, commute, and the prevailing gas prices in your area. $1,400 provides a solid benchmark for comparing the Altima’s running costs to other vehicles in its class.

Real-world expectations

The EPA figures provide a standardized measure, and your real-world MPG may differ. Aggressive driving, frequent short trips, and heavy use of air conditioning can all negatively impact fuel economy. Practicing smooth acceleration, anticipating traffic flow, and maintaining proper tire inflation can help you achieve or even exceed the EPA estimates. Drivers report averaging around 29-33 MPG in mixed driving conditions, suggesting the EPA numbers are reasonably accurate. Responsible driving habits are crucial to maximizing fuel efficiency in any vehicle, including the Altima.

How it compares

The 2018 Altima 2.5L competes in a crowded segment with several fuel-efficient options. The Honda Accord 1.5T achieves an EPA-rated 33 MPG combined, making it a slightly more fuel-efficient choice. The Toyota Camry LE with its 2.5L engine also gets a similar 32 MPG combined. The Hyundai Sonata SE, with its 2.4L engine, lands at 30 MPG combined. The Altima’s fuel economy is competitive, and its appeal often lies in its value and comfortable ride, rather than outright fuel efficiency leadership. For buyers considering the ALTIMA MPG across all years, these small differences can add up over time. Be sure to check all Nissan fuel economy data before choosing your vehicle.

Tips to maximize efficiency

The Altima’s CVT is designed to optimize fuel economy, so avoid aggressive acceleration that forces the engine to work harder than necessary. Smooth and steady acceleration is key to keeping the RPMs low and the fuel consumption minimal. Pay attention to the road ahead and anticipate traffic flow to minimize unnecessary braking and acceleration.

Keep your tires properly inflated. Underinflated tires increase rolling resistance, which reduces fuel economy. Check your tire pressure regularly and inflate them to the recommended pressure listed on the sticker inside the driver’s side door. This simple step can make a noticeable difference in your MPG.

Reduce the weight you carry in the vehicle. Extra cargo adds weight, which forces the engine to work harder and consume more fuel. Remove any unnecessary items from your trunk and back seat to improve fuel efficiency. A lighter car is a more efficient car.

Use cruise control on the highway when appropriate. Cruise control helps maintain a consistent speed, which can improve fuel economy on long, straight stretches of road. Be sure to disengage cruise control in heavy traffic or when driving on winding roads.

Regular maintenance is essential for optimal fuel economy. Keep your engine properly tuned and replace air filters as recommended. A well-maintained engine runs more efficiently and consumes less fuel. Don’t neglect scheduled maintenance, as it can have a significant impact on your Altima’s long-term fuel efficiency.