Nissan SR20DE Engine Specifications
The Nissan SR20DE engine is a well-regarded powerplant that has gained popularity among car enthusiasts for its performance and reliability. This inline-four engine is part of Nissan’s SR family and has been used in various models since its introduction in the late 1980s. Below are the detailed specifications of the SR20DE engine.
| Specification | Details |
|---|---|
| Engine Type | Inline-4, Naturally Aspirated |
| Displacement | 2.0 liters (1998 cc) |
| Bore x Stroke | 86.0 mm x 86.0 mm |
| Compression Ratio | 9.5:1 |
| Power Output | 140 hp (104 kW) at 6,000 rpm |
| Torque | 133 lb-ft (180 Nm) at 4,800 rpm |
| Fuel System | Multi-Point Fuel Injection |
| Ignition System | Distributor-less Ignition System (DIS) |
| Valvetrain | DOHC, 16 Valves |
| Engine Weight | Approximately 130 kg (287 lbs) |
Engine Configuration
The SR20DE engine features a robust inline-four configuration, which is known for its balance between performance and efficiency. Below are some key aspects of the engine’s configuration:
Key Features
- DOHC Design: The Dual Overhead Camshaft (DOHC) design allows for better airflow and higher RPM capabilities, contributing to improved performance.
- 16-Valve Setup: With 16 valves, the engine can optimize the intake and exhaust flow, enhancing overall efficiency.
- Aluminum Cylinder Head: The lightweight aluminum cylinder head reduces overall engine weight and improves thermal efficiency.
- Multi-Point Fuel Injection: This system provides precise fuel delivery, improving fuel economy and reducing emissions.
Applications
The SR20DE engine has been utilized in a variety of Nissan models, including:
- Nissan 240SX
- Nissan Sentra SE-R
- Nissan Silvia
- Nissan Primera
- Nissan Altima
Engine Oil Specifications
Proper lubrication is essential for the longevity and performance of the SR20DE engine. Below are the recommended engine oil specifications:
Oil Type
- Recommended Oil: SAE 5W-30 or 10W-30
- Oil Capacity: Approximately 4.5 quarts (4.3 liters) with filter change
Oil Quality Standards
The engine oil should meet the following standards:
- API Service Classification: SM, SN, or higher
- ILSAC: GF-4 or higher
Service Intervals
Maintaining the SR20DE engine requires regular oil changes and inspections to ensure optimal performance. Below are the recommended service intervals:
Oil Change Intervals
- Regular Driving Conditions: Every 5,000 miles (8,000 km) or 6 months, whichever comes first.
- Severe Driving Conditions: Every 3,000 miles (5,000 km) or 3 months, whichever comes first. This includes frequent short trips, extreme temperatures, or towing.
Additional Maintenance Recommendations
To keep the SR20DE engine in top condition, consider the following maintenance tasks:
- Replace the oil filter with every oil change.
- Inspect the air filter every 15,000 miles (24,000 km) and replace as needed.
- Check and replace spark plugs every 30,000 miles (48,000 km).
- Inspect the timing chain and tensioner every 60,000 miles (96,000 km).
- Flush and replace coolant every 30,000 miles (48,000 km).
Conclusion
The Nissan SR20DE engine is a versatile and reliable powerplant that has stood the test of time. With its solid specifications, efficient engine configuration, and straightforward maintenance requirements, it remains a popular choice for both daily drivers and performance enthusiasts. Regular maintenance and adherence to oil specifications will ensure that the SR20DE continues to perform at its best for years to come.
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