Tecflow Ceramic Gear Protector Tecflow Top Engine Cleaner (TEC) is a very fast and effective cleaning agent that is applied via the air intake. TEC is suitable for cleaning both gasoline and diesel engines with or without Turbo / Catalytic converter. PROPERTIES: DIESEL ENGINES: - cleans any throttle valve present - cleans the intake valves and valve stems - cleans the pre-combustion chambers - cleans vacuum-controlled exhaust manifold valves - cleans the intake manifolds - removes soot from pistons and piston rings - cleans the cylinder head - cleans turbo blades PETROL ENGINES: - cleans the carburetor internally without disassembly - cleans the injectors - cleans the intake manifold - decarbonizes pistons and piston rings - decarbonizes exhaust valves - cleans venturi, valves, springs, pivot points, etc. - cleans the throttle valve - cleans the intake valves and valve stems - cleans the cylinder head - cleans the idle air control valve (stepper motor) This is the best you can get for your car!