Nissan H25 Engine Specifications
The Nissan H25 engine is a notable powerplant that has garnered attention for its performance and reliability. Below are detailed specifications that outline its capabilities and features.
| Specification | Details |
|---|---|
| Engine Type | Inline 4-cylinder |
| Displacement | 2.5 liters (2488 cc) |
| Bore x Stroke | 89.0 mm x 100.0 mm |
| Compression Ratio | 9.6:1 |
| Maximum Power | 169 hp (126 kW) at 6,000 rpm |
| Maximum Torque | 167 lb-ft (226 Nm) at 4,000 rpm |
| Fuel System | Multi-Point Fuel Injection |
| Fuel Type | Regular unleaded (87 octane) |
| Transmission Options | CVT, 6-speed manual |
| Cooling System | Water-cooled |
Engine Configuration
The Nissan H25 engine is designed with a focus on efficiency and performance. Its inline 4-cylinder configuration allows for a compact design while providing adequate power for various applications. Below are some key aspects of its configuration:
Key Features
- Inline 4-cylinder layout for a balanced performance.
- Aluminum alloy construction for reduced weight and improved thermal efficiency.
- DOHC (Double Overhead Camshaft) design for better airflow and performance.
- Variable Valve Timing (VVT) technology enhances fuel efficiency and power delivery.
Applications
The H25 engine is commonly found in various Nissan models, including:
- Nissan Altima
- Nissan Rogue
- Nissan Murano
- Nissan Pathfinder
Engine Oil Specifications
Proper lubrication is critical for the longevity and performance of the H25 engine. Below are the recommended engine oil specifications:
| Specification | Details |
|---|---|
| Oil Type | Synthetic or Conventional |
| Viscosity Grade | 5W-30 |
| Oil Capacity (with filter) | 5.1 quarts (4.8 liters) |
| Oil Filter Part Number | 15208-65F0A |
Service Intervals
Regular maintenance is essential for the optimal performance of the Nissan H25 engine. Below are the recommended service intervals:
Oil Change Intervals
- Every 5,000 to 7,500 miles (8,000 to 12,000 km) for conventional oil.
- Every 7,500 to 10,000 miles (12,000 to 16,000 km) for synthetic oil.
Other Maintenance Checks
It is advisable to perform the following checks at regular intervals:
- Inspect air filter every 15,000 miles (24,000 km).
- Replace spark plugs every 30,000 miles (48,000 km).
- Check coolant levels and condition every 30,000 miles (48,000 km).
- Inspect brake fluid every 20,000 miles (32,000 km).
Conclusion
The Nissan H25 engine stands out for its combination of performance, efficiency, and reliability. Understanding its specifications, configuration, oil requirements, and service intervals is crucial for maintaining its optimal performance. Regular maintenance and adherence to recommended service intervals will ensure that the engine continues to operate smoothly for years to come.
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