Nissan Altima 2.5 Engine Specifications
The Nissan Altima has long been a popular choice among midsize sedans, and its 2.5-liter engine variant is a key contributor to its appeal. This engine strikes a balance between performance and fuel efficiency, making it suitable for both daily commuting and longer journeys. Below are the detailed specifications for the Nissan Altima 2.5 engine.
| Specification | Details |
|---|---|
| Engine Type | Inline 4-cylinder |
| Displacement | 2.5 liters (152 cubic inches) |
| Power Output | 188 horsepower @ 6,000 RPM |
| Torque | 180 lb-ft @ 3,600 RPM |
| Compression Ratio | 9.6:1 |
| Fuel System | Direct Injection |
| Fuel Type | Regular unleaded (87 octane) |
| Transmission Options | Continuously Variable Transmission (CVT) |
| Drivetrain | Front-wheel drive (FWD) or All-wheel drive (AWD) |
Engine Configuration
The Nissan Altima 2.5 engine features a well-engineered inline 4-cylinder configuration that provides a good balance of power and efficiency. Here are some key aspects of its configuration:
Key Features
- Inline 4-Cylinder Design: This configuration allows for a compact engine size while delivering adequate power.
- Direct Fuel Injection: Enhances fuel efficiency and performance by delivering fuel directly into the combustion chamber.
- Variable Valve Timing: Nissan’s Continuous Variable Valve Timing (CVVT) optimizes performance across various RPM ranges.
- Lightweight Construction: The engine is designed with lightweight materials to improve fuel efficiency and handling.
Engine Oil Specifications
Proper engine oil is crucial for maintaining the performance and longevity of the Nissan Altima 2.5 engine. Here are the recommended oil specifications:
| Specification | Details |
|---|---|
| Oil Type | Synthetic 0W-20 or 5W-30 |
| Oil Capacity (with filter) | 5.1 quarts (4.8 liters) |
| Oil Filter | Nissan OEM or equivalent |
Service Intervals
Regular maintenance is essential for ensuring the optimal performance of the Nissan Altima 2.5 engine. Below are the recommended service intervals for oil changes and other essential maintenance tasks:
Oil Change Intervals
- Every 5,000 to 7,500 miles or 6 months, whichever comes first.
- For severe driving conditions (e.g., stop-and-go traffic, extreme temperatures), consider changing oil every 3,000 to 5,000 miles.
Other Maintenance Tasks
- Air Filter Replacement: Every 15,000 to 30,000 miles, depending on driving conditions.
- Fuel Filter Replacement: Every 30,000 miles.
- Coolant Flush: Every 60,000 miles.
- Transmission Fluid Change: Every 60,000 to 100,000 miles.
Conclusion
The Nissan Altima 2.5 engine is a well-rounded powertrain that offers a blend of efficiency and performance. Understanding its specifications, configuration, and maintenance requirements is essential for any Altima owner. By adhering to the recommended service intervals and using the appropriate engine oil, drivers can ensure their Altima remains reliable and efficient for years to come.
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