Cadillac CTS 2008-2013 6.2L Engine Specifications

The 6.2L engine in the 2008-2013 Cadillac CTS is a supercharged V8 engine, producing 400 horsepower at 5,900 rpm and 395 lb-ft of torque at 3,900 rpm. It features a cast aluminum block and cylinder heads, with a forged steel crankshaft and connecting rods. The engine is compatible with E85 fuel and includes Direct Injection technology for improved efficiency and performance. It is paired with a 6-speed automatic transmission and is available in rear-wheel drive and all-wheel drive configurations.

Regular maintenance for the 6.2L engine includes oil changes every 5,000 to 7,500 miles using synthetic oil meeting GM standards (e.g., dexos1). Tire rotations should be performed every 7,500 miles. Coolant should be replaced every 50,000 miles, and brake fluid every 30,000 miles. Spark plugs should be replaced at 100,000 miles, and the air filter should be replaced every 15,000 to 30,000 miles. Always use genuine GM parts or approved equivalents to maintain warranty and performance.

Installation or replacement of engine components should be done by a certified mechanic or experienced technician. Start by disconnecting the battery and draining necessary fluids. Use proper tools and follow the service manual for specific procedures. Ensure all connections are secure and torqued to specifications. After installation, test the system for leaks and proper function. Always refer to the GM service manual for detailed instructions and safety precautions.

Common issues with the 6.2L engine include rough idling, reduced performance, or overheating. Check for fault codes using an OBD-II scanner and consult the service manual for diagnostic procedures. Inspect fuel injectors, spark plugs, and air filters for fouling or blockages. Ensure proper coolant levels and check for leaks in the cooling system. Address any issues promptly to prevent further damage to the engine.

To optimize performance, consider upgrading to a high-flow air intake and cat-back exhaust system. Ensure proper tuning with a reputable engine calibration. Regularly maintain the engine with synthetic oil and high-quality filters. Avoid excessive engine stress and monitor operating temperatures. For track use, consider installing a performance radiator and coolant system. Always follow GM recommendations and consult a professional tuner for custom modifications.