STP Complete Fuel System Cleaner Petrol 400ml – Full Petrol System Treatment 5040EN

STP Complete Fuel System Cleaner Petrol 400ml is a concentrated petrol fuel additive designed to clean and condition the entire fuel system, helping restore lost performance and support smoother engine operation.

The formula works throughout key areas including fuel injectors, carburettors, intake valves, combustion chambers, valve guides and ports, cylinder heads and piston tops, helping remove power-robbing deposits that can build up over time.

Regular use can help improve acceleration, fuel economy and starting performance, while also supporting lower exhaust emissions. STP states that fuel economy savings of up to 5.7% may be possible under suitable conditions.

The treatment is safe for use with catalytic converters and turbocharged petrol engines and is recommended for use approximately every 4,000 miles / 6,000km for ongoing fuel-system maintenance.

Brand: STP
Product Type: Complete Petrol Fuel System Cleaner
Size: 400ml
Fuel Type: Petrol
SKU: 5040EN
Cleans: Injectors, Carburettors, Intake Valves, Combustion Chambers, Valve Guides, Ports, Cylinder Heads & Piston Tops
Suitable For: Compatible Petrol Engines, Catalytic Converters & Turbos
Recommended Use: Every 4,000 Miles / 6,000km
Key Benefits: Helps Restore Power, Improve Acceleration, Support Fuel Economy & Reduce Emissions

Safety: May be fatal if swallowed and enters the airways. Harmful to aquatic life with long-lasting effects. Always follow the product label and keep out of reach of children.