The 2017 Nissan Altima’s 2.5-liter 4-cylinder engine represents the core of a well-balanced sedan designed for efficiency and everyday practicality. This powertrain delivers a blend of responsive performance and respectable fuel economy, making it a compelling choice in the competitive mid-size segment. Understanding its specific characteristics helps potential buyers gauge if this model aligns with their driving needs and expectations.
Technical Specifications and Design
Under the hood, the base model 2017 Altima is powered by a naturally aspirated 2.5-liter QR25DE four-cylinder engine. This unit generates 182 horsepower and 181 lb-ft of torque, providing adequate thrust for highway merging and city driving. The engine utilizes a dual overhead cam (DOHC) design with variable valve timing (CVTCS) to optimize performance across the rev range while helping to maintain fuel efficiency.
Powertrain Configuration
Mated to this 4-cylinder is a continuously variable transmission (CVT), which is standard across the Altima lineup. This CVT simulates 7-speed manual shifting and plays a key role in maximizing the engine's efficiency. The final drive ratio is 4.21, contributing to the vehicle's overall highway cruising capability. For the 2017 model year, this powertrain combination was offered in the base S, SV, and SL trims.
Performance and Driving Dynamics
Driving the 2017 Altima with the 2.5L engine offers a smooth and composed experience. Acceleration is steady and linear, never feeling strained even when carrying passengers or climbing grades. The CVT ensures the engine operates within a relatively narrow RPM band, which minimizes noise and contributes to the class-leading fuel economy figures. The sedan handles well, with steering that provides decent feedback and a suspension that absorbs road imperfections effectively.
Efficiency and Real-World Usage
One of the primary advantages of this powertrain is its efficiency. The Environmental Protection Agency (EPA) estimated the 2017 Altima 2.5 S at 28 city / 39 highway miles per gallon. These numbers are competitive within the mid-size sedan class and translate to tangible savings at the pump. The engine's design also emphasizes reliability, building on the proven architecture found in other Nissan vehicles.
Comparison with Trim Levels and Options
While the 2.5-liter engine was the standard powerplant, it is important to distinguish it from the available upgrades. The SV and SL Performance trims offered a more powerful 3.5-liter V6, producing 260 horsepower. Conversely, the base S trim typically came with the 2.5L 4-cylinder. This comparison highlights how the 4-cylinder engine serves as the efficient entry point into the Altima lineup, while the V6 caters to those seeking more power.
Features Complementing the Engine
The 2017 Altima 2.5L models come equipped with a host of modern features that enhance the driving experience. Available technologies include a Bose audio system, heated front seats, and advanced safety suites like Nissan's Around View Monitor. These amenities, paired with the reliable engine, position the Altima as a well-equipped sedan that values both comfort and safety.
Reliability and Maintenance Considerations
Nissan's QR25DE engine has a solid reputation for longevity and durability, provided it receives proper maintenance. Regular oil changes, using the recommended viscosity, and adhering to the scheduled service intervals are crucial for ensuring the engine runs smoothly for high mileage. Owners often report that this powertrain is a dependable workhorse with a low incidence of major mechanical issues.
