Lucas Deep Clean GDI Designed to remedy and prevent problems associated with the harmful carbon deposits that rob your engine of performance and fuel economy. KEY BENEFITS - Direct Injection and Port Fuel Injection Tune-up - Concentrated solvent and fuel detergent blend - Cleans air intake (runners, ports and valves), turbos and supports emissions systems - Removes up to half of all valve deposits after one use - Reduces carbon buildup - Restores horsepower and torque - Improves hard starts and