Royal Purple uses premium synthetic base oils and proprietary additives to enhance protection and performance for modern engines, including those with smaller displacements, turbochargers, gasoline direct injection (GDI), and start/stop systems. GDI engines deliver unprecedented power and fuel economy, leading to higher loads, increased wear, and low-speed pre-ignition (LSPI). Royal Purple High Performance engine oils feature advanced additives specifically designed to address these issues, ensuring engine performance and reliability.   Oil Viscosity: 5W-20. Net Content: 1 Quart.    Weight: 2lbs