Caltex Havoline EXTRA (10W-40)-1L is a high-quality, shear-stable multigrade engine oil designed for gasoline engines in passenger cars and light-duty vehicles requiring API SL or lower performance lubricants. It offers excellent wear protection, preserves engine power and performance by minimizing deposits, and resists oil degradation for longer service life. Ideal for both naturally aspirated and turbocharged engines, it ensures smooth operation and reliable protection under all driving conditions.