2008 GMC Sierra 5.3 Engine Specifications
The 2008 GMC Sierra is a full-size pickup truck that offers a range of engine options, with the 5.3-liter V8 being one of the most popular choices. This engine is known for its balance of power, efficiency, and reliability, making it a favored option among truck enthusiasts and everyday drivers alike.
Engine Overview
The 5.3-liter V8 engine in the 2008 GMC Sierra is part of GM’s Gen IV small-block family. This engine is designed to provide a robust performance while maintaining reasonable fuel efficiency. Below are the detailed specifications for the 5.3-liter engine.
| Specification | Details |
|---|---|
| Engine Type | 5.3L V8 (L33) |
| Displacement | 5.3 liters (323 cubic inches) |
| Horsepower | 315 hp @ 5,200 rpm |
| Torque | 338 lb-ft @ 4,400 rpm |
| Compression Ratio | 9.5:1 |
| Fuel System | Sequential fuel injection |
| Fuel Type | Regular unleaded (87 octane) |
| Maximum Engine Speed | 6,000 rpm |
| Block Material | Cast iron |
| Head Material | Aluminum |
| Valvetrain | DOHC, 16 valves |
| Camshaft Configuration | VVT (Variable Valve Timing) |
Engine Configuration
The 5.3-liter V8 engine is configured to deliver a blend of power and efficiency. Its design incorporates several advanced technologies that enhance performance and reduce emissions.
Key Features
-Variable Valve Timing (VVT): This technology optimizes engine performance by adjusting the timing of the intake and exhaust valves, improving efficiency and power delivery across a range of speeds.
-Aluminum Cylinder Heads: The use of aluminum for the cylinder heads reduces weight, which contributes to better fuel economy and handling.
-Active Fuel Management (AFM): This system allows the engine to deactivate half of its cylinders under light-load conditions, improving fuel efficiency without sacrificing performance when full power is needed.
Performance Metrics
The performance metrics of the 5.3-liter engine are impressive for a truck of its size:
-Towing Capacity: The 5.3L V8 can tow up to 6,500 pounds when properly equipped, making it suitable for various hauling tasks.
-Payload Capacity: The payload capacity varies by configuration but can reach up to 1,500 pounds.
Engine Oil Specifications & Service Intervals
Proper maintenance of the engine oil is crucial for the longevity and performance of the 2008 GMC Sierra’s 5.3-liter engine. Understanding the oil specifications and recommended service intervals is essential for any owner.
Engine Oil Specifications
The following are the recommended engine oil specifications for the 2008 GMC Sierra with the 5.3-liter engine:
| Specification | Details |
|---|---|
| Oil Type | SAE 5W-30 |
| Oil Capacity (with filter) | 6 quarts |
| Oil Filter | AC Delco PF48E or equivalent |
| Oil Change Interval | 7,500 miles or 12 months (whichever comes first) |
Service Intervals
Regular maintenance is key to ensuring the engine operates efficiently. Below are the recommended service intervals for the 2008 GMC Sierra 5.3-liter engine:
-Oil Change: Every 7,500 miles or 12 months, whichever comes first.
-Oil Filter Replacement: Replace with every oil change.
-Air Filter Replacement: Check every 15,000 miles and replace as necessary.
-Spark Plug Replacement: Replace every 100,000 miles.
-Coolant Flush: Recommended every 50,000 miles.
Conclusion
The 2008 GMC Sierra with the 5.3-liter V8 engine is a well-rounded choice for those seeking a reliable and powerful pickup truck. With its impressive specifications, advanced engine technologies, and clear maintenance guidelines, this vehicle is designed to meet the needs of both work and leisure. Regular maintenance and adherence to oil specifications will ensure that the engine continues to perform optimally for years to come.
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