Buick LaCrosse 2010-2016 3.0L Engine Specifications

The 3.0L engine in the 2010-2016 Buick LaCrosse is a V6 direct-injection engine producing 255 horsepower at 6700 RPM and 217 lb-ft of torque at 2900 RPM. It features a 60-degree cylinder block, aluminum cylinder heads, and dual overhead camshafts. The engine is paired with a 6-speed automatic transmission and is compatible with regular unleaded fuel. It meets ULEV emissions standards and has a fuel capacity of 18.0 gallons.

Regular maintenance for the 3.0L engine includes oil changes every 5,000-7,500 miles using 5W-20 synthetic oil, tire rotations every 7,500 miles, and spark plug replacement every 100,000 miles. The engine air filter should be replaced every 15,000-30,000 miles, and the coolant should be changed every 50,000 miles. It's also recommended to inspect the belts and hoses every 50,000 miles and replace them as needed.

To replace the air filter, locate the engine air filter housing on the driver's side of the engine compartment. Open the housing by releasing the clips or screws, depending on the model year. Remove the old air filter and inspect the housing for any debris. Install the new air filter, ensuring it's properly seated and the gasket is in place. Close the housing and secure it with the clips or screws. Refer to the owner's manual for specific instructions.

Common issues with the 3.0L engine include reduced engine power, rough idling, or decreased fuel efficiency. Check for fault codes using an OBD-II scanner to identify specific problems. Common solutions include replacing the spark plugs, checking for vacuum leaks, or updating the engine control module software. If the 'Check Engine' light is on, address the issue promptly to prevent further damage. Always refer to a certified mechanic if the problem persists.

To optimize performance, ensure regular maintenance is up to date, including oil changes and filter replacements. Use high-quality fuel and consider a performance air intake or exhaust system for improved airflow. Avoid aggressive driving and maintain proper tire pressure to enhance fuel efficiency. Additionally, keep the engine tuned with the latest software updates from General Motors to ensure optimal performance and efficiency.