What is the proper spark plug gap for a 2013 GM with a 6.0 motor?

The proper spark plug gap for a 2013 GM vehicle equipped with a 6.0-liter engine is typically set at 0.040 inches (1.01 mm). However, it's always best to consult the owner's manual or a service manual for the specific vehicle model for the most accurate specifications. Proper gap settings are crucial for optimal engine performance and fuel efficiency.