Description
The Nissan 2.5 QR25 (GS) engine is a part of Nissan’s QR family of engines, known for its balance of performance and fuel efficiency. Here’s an overview:
Specifications
Configuration: Inline-4 gasoline engine
Displacement: 2.5 liters
Power Output: Approximately 165-175 hp, depending on the specific model and tuning.
Torque: Around 230-250 Nm.
Features
Dual Overhead Camshafts (DOHC): Enhances performance and efficiency.
Variable Valve Timing (VVT): Improves power delivery and fuel economy across different RPM ranges.
Aluminum Construction: Reduces weight while maintaining strength.
Applications
The QR25 engine is used in various Nissan models, including:
Nissan Altima
Nissan Sentra
Nissan Xterra
Nissan Pathfinder
Common Issues
Oil Consumption: Some owners report higher than normal oil consumption.
Timing Chain Tensioner: May develop issues leading to engine noise or performance problems.
Exhaust Manifold Cracks: Can occur over time, especially in high-mileage vehicles.
Maintenance Tips
Regular oil changes are crucial for longevity.
Monitor the cooling system to prevent overheating.
Pay attention to any engine noises that might indicate timing chain issues.
The QR25 engine is generally reliable and offers good performance for daily driving needs. If you have any specific questions or need further details, let me know!
