GMC 6.6 Gas Engine Specifications
The GMC 6.6 gas engine is a robust powertrain option that has gained popularity for its performance and reliability. This engine is designed to meet the demands of heavy-duty applications while providing a smooth driving experience. Below are the detailed specifications for the GMC 6.6 gas engine.
| Specification | Details |
|---|---|
| Engine Type | V8 |
| Displacement | 6.6 liters |
| Horsepower | 401 hp @ 5,600 RPM |
| Torque | 464 lb-ft @ 4,000 RPM |
| Fuel System | Direct Injection |
| Compression Ratio | 10.8:1 |
| Fuel Type | Regular Unleaded |
| Transmission Compatibility | 10-speed automatic |
| Emissions Rating | Meets EPA standards |
Engine Configuration
The GMC 6.6 gas engine features a well-engineered configuration that enhances its performance and efficiency. Below are some key aspects of its configuration:
Engine Layout
-V8 Configuration: The engine has a V8 layout, which provides a balance of power and smooth operation.
-Aluminum Block and Heads: The use of aluminum helps reduce weight while maintaining strength and durability.
Valvetrain
-DOHC (Dual Overhead Camshaft): This design allows for precise timing of the intake and exhaust valves, improving performance and efficiency.
-Variable Valve Timing (VVT): Enhances engine responsiveness and fuel efficiency across different RPM ranges.
Induction System
-Direct Fuel Injection: This system improves fuel atomization and combustion efficiency, resulting in better power output and lower emissions.
-Cold Air Intake: Designed to maximize airflow into the engine, contributing to improved performance.
Engine Oil Specifications & Service Intervals
Proper maintenance of the GMC 6.6 gas engine includes regular oil changes and using the correct engine oil. Below are the specifications and recommended service intervals.
Engine Oil Specifications
| Specification | Details |
|---|---|
| Oil Type | Synthetic Blend or Full Synthetic |
| Viscosity Grade | SAE 0W-20 or SAE 5W-30 |
| Oil Capacity (with filter) | 8 quarts (7.6 liters) |
| Oil Filter | AC Delco PF63E or equivalent |
Service Intervals
-Oil Change Frequency: It is recommended to change the engine oil every 7,500 miles or 12 months, whichever comes first, under normal driving conditions.
-Severe Driving Conditions: If the vehicle is frequently driven in severe conditions (towing, extreme temperatures, or stop-and-go traffic), consider changing the oil every 5,000 miles.
-Oil Filter Replacement: Always replace the oil filter during an oil change to ensure optimal engine performance.
Conclusion
The GMC 6.6 gas engine is engineered for performance, reliability, and efficiency. Understanding its specifications, configuration, and maintenance requirements is crucial for maximizing its lifespan and performance. Regular oil changes and using the correct oil type will ensure that the engine operates smoothly and efficiently, making it a dependable choice for heavy-duty applications.
0 Comments