BARDAHL 101023 FUEL INJECTOR CLEANER 300 ML - Petrol Injector Cleaner for PFI and GDI, Shock Treatment

Capacity: 300 ml

BARDAHL 101023 – FUEL INJECTOR CLEANER 300 ML

Bardahl Fuel Injector Cleaner is Bardahl's shock treatment for cleaning and protecting the fuel system of petrol engines, with both port injection (PFI) and direct injection (GDI). It is poured into the tank and restores performance lost through deposits on injectors, valves and in the combustion chamber. It is the choice for drivers and workshops when the engine has already lost its sharpness.

What it is for

According to Bardahl it is indicated when a petrol engine shows irregular acceleration, high fuel consumption, black exhaust smoke or irregular idle. The typical causes listed by Bardahl are a clogged injection system and deposits in the combustion chamber.

Benefits

• ✅ Restores performance lost through deposits on injectors, valves and in the combustion chamber
• ✅ Cleans the injectors for optimal fuel atomisation
• ✅ Inhibits deposit build-up on valves and in the combustion chamber
• ✅ Helps reduce fuel consumption and polluting emissions
• ✅ Protects and lubricates the fuel system
• ✅ Raises the octane rating of petrol, giving the engine more pick-up and power (Bardahl's claim)

Dosage and directions

• Treatment: one bottle in 20 litres of fuel, two bottles for a full tank (Bardahl general catalogue, November 2025).
• Maintenance: one 300 ml bottle every 5,000 km.
• Pour into the tank and fill up with petrol.

Technical specifications

• Bardahl code: 101023 (COD 101 family)
• Size: 300 ml bottle
• Dosage: 1 bottle per 20 L for the treatment, 2 bottles for a full tank; 1 bottle every 5,000 km for maintenance
• Fuel system: PFI port injection and GDI direct injection
• Type: shock treatment for the petrol fuel system

Compatibility

Petrol engines with traditional PFI port injection and GDI direct injection. Petrol only: not a product for diesel engines.

When it does not help: it does not repair an electrically faulty injector, a defective coil or spark plug, or a damaged lambda sensor or catalytic converter. If the ECU reports misfires (codes P0300-P030X), a diagnosis is needed first.

Pair it with

• Bardahl 118018 Top Gasoline + Hybrid 250 ml – regular maintenance for GDI, PFI and hybrid engines
• Bardahl 114018 Top Gasoline 250 ml – regular maintenance for PFI and carburettor engines
• Bardahl 147023 Engine Tune-Up 355 ml – engine oil circuit cleaner

Frequently asked questions

How is Bardahl Fuel Injector Cleaner 101023 dosed?
In Bardahl's general catalogue (November 2025) the treatment is one 300 ml bottle in 20 litres of petrol, so two bottles for a full tank. For maintenance, add one bottle every 5,000 km.

How often should I use the Fuel Injector Cleaner?
To keep the injectors clean, Bardahl indicates one bottle every 5,000 km; the full treatment is done when symptoms appear (irregular acceleration, high consumption, irregular idle).

Does it work on GDI direct injection engines?
Yes. Bardahl states it is suitable for petrol engines with both traditional PFI port injection and GDI direct injection.

What is the difference between Fuel Injector Cleaner 101023 and Top Gasoline 114018?
Fuel Injector Cleaner 101023 is a shock treatment for already dirty injectors, for PFI and GDI engines. Top Gasoline 114018 is a multifunctional additive with Octane Booster for regular maintenance (every 3 fill-ups or every 4,000-5,000 km) of PFI and carburettor engines.

What is the difference between Fuel Injector Cleaner 101023 and Top Gasoline + Hybrid 118018?
101023 is the shock treatment to restore performance. Top Gasoline + Hybrid 118018 is the multifunctional additive for regular maintenance of GDI, PFI, hybrid and Start & Stop engines, with a stabiliser against petrol ageing. You can do the shock treatment first and then move to maintenance.

Does it also clean the intake valves of direct-injection engines?
On GDI engines petrol is injected directly into the combustion chamber and does not pass over the intake valves, so a fuel additive works mainly on the injectors and combustion chamber.

Does it raise the octane rating of petrol?
Yes, Bardahl states that it raises the octane rating of petrol, giving the engine more pick-up and power.

Does it fix irregular idle?
Yes, if the cause is dirty injectors or combustion chamber deposits. If irregular idle comes from the throttle body, air leaks or electrical components, a diagnosis is needed.

Does it help pass the emissions inspection?
It reduces emissions when they are caused by injectors and deposits. It cannot make up for a faulty lambda sensor, catalytic converter or spark plug.

Can it be used on diesel engines?
No, it is for petrol engines only. For diesel, Bardahl offers the Diesel Injector Cleaner 122031.

Why buy from Autoricambi Tritella

Since 2007 we have supplied workshops and drivers through 4 stores in the province of Teramo, Italy (Giulianova, Mosciano Stazione, Roseto degli Abruzzi, Nereto). Genuine Bardahl products, fast shipping and technical support: if you are unsure which product suits your car, contact us before buying.