Bardahl 5+1 Injector, Turbo and EGR Valve Cleaner

It is not just a simple additive, but a multifunction concentrated cleaner designed to act on the entire fuel and exhaust system without the need to dismantle anything. It cleans injectors: restores the correct fuel atomisation, eliminating deposits that cause irregularities and loss of power; valves and combustion chamber: removes carbon deposits that compromise sealing and combustion; turbo: cleans the vanes and ducts, helping to maintain correct pressure; EGR valve: dissolves soot that tends to block the valve, a common cause of errors and loss of performance; catalyst / DPF: helps to keep the exhaust system clean, reducing the risk of blockages.

How to use (tank version): Wait for the fuel reserve light to come on. Pour the entire bottle into the tank (the cap often includes an extendable spout). Add the fuel indicated on the packaging (generally 5-7.5 gallons, depending on the brand and type of engine); drive for about 20 minutes at a constant speed of 2,500-3,000 rpm, then resume normal driving until the treated fuel is consumed.

If you refuel at stations you are unsure of, or if the car is mainly used in the city (where EGR and DPF get dirty sooner), this treatment helps prevent costly replacements of injectors, EGR valves, or turbos. It is compatible with both petrol and diesel engines, of old and new generations.

A treatment is recommended every 3,100-6,200 miles (shorter interval for urban use).