Multi-Valve Cleaner

STP Multi-Valve Cleaner 250ml is a fuel additive designed to clean carbon deposits from fuel injectors, intake valves, and combustion chambers, helping to restore lost engine power, smooth out rough idling, improve fuel economy, and reduce emissions by clearing blockages. You typically add the 250ml bottle to a full tank of petrol or diesel, and it's safe for modern engines with catalytic converters, turbochargers, and oxygen sensors. 
Key Benefits:
Cleans Deposits: Removes power-robbing carbon buildup.
Restores Performance: Helps regain lost power and smooths rough idling.
Improves Efficiency: Enhances fuel economy and reduces harmful emissions.
Safe for Modern Cars: Compatible with turbo, supercharged, and catalytic converter-equipped engines.