STP Complete Diesel Fuel System Cleaner 400ml 65400EN – Injector & Engine Cleaner

STP Complete Diesel Fuel System Cleaner 400ml 65400EN is a concentrated diesel fuel treatment designed to clean the entire fuel system, helping restore engine performance, improve fuel efficiency and reduce unwanted exhaust emissions.

The powerful cleaning formula targets deposits throughout key areas including fuel injectors, valves and combustion chambers, helping maintain efficient fuel delivery and cleaner combustion.

Regular treatment can help restore throttle response and acceleration, while improved combustion may contribute to better fuel economy and reduced black smoke and exhaust emissions.

One 400ml bottle treats up to 50 litres of diesel fuel and is easy to use — simply pour the contents into the fuel tank before refuelling according to the manufacturer's instructions.

Suitable for a wide range of modern and conventional diesel engines, including compatible turbocharged and direct-injection systems, STP Complete Diesel Fuel System Cleaner is ideal for routine maintenance and preventative fuel-system care.

Brand: STP
Product: Complete Diesel Fuel System Cleaner
Product Code: 65400EN
Product Type: Diesel Fuel Additive / System Cleaner
Size: 400ml
Fuel Type: Diesel
Treats: Up to 50 Litres
Cleans: Injectors, Valves & Combustion Chambers
Suitable For: Compatible Diesel, Turbocharged & Direct-Injection Engines
Key Benefits: Cleans Fuel System, Helps Restore Power, Supports Fuel Efficiency & Helps Reduce Emissions
Application: Add Directly to Fuel Tank Before Refuelling