Fuel

Citroen C4 / Citroen C4 Owner's Manual / Practical  advice / Fuel

A label on the inside of the fuel filler flap indicates the approved fuel quality

A label on the inside of the fuel filler flap indicates the approved fuel quality type.

DIESEL FUEL

DIESEL FUEL

UNLEADED PETROL

UNLEADED PETROL

Petrol engines are designed to run on RON 95 fuel. However, for better vehicle performance (petrol engines), we recommend RON 98.

For petrol engines with catalytic converter, use of unleaded fuel is obligatory The filler neck has a narrower orifice to admit only petrol filler nozzles. When you are filling your fuel tank, do not persist after the third cutoff; this could cause your vehicle to malfunction.

If you have put in fuel that is wrong for your vehicle, it is essential to have the tank drained before you start the engine.

BioFlex

Your vehicle has been designed to operate equally on unleaded petrol (95 or 98) or on bioethanol (in Europe this is a mixture of 85 % ethanol and 15 % unleaded petrol, known as E85).

A label inside the fuel filler flap indicates the fuels authorised:

Other than the question of the two authorised fuels, your vehicle is used in

Other than the question of the two authorised fuels, your vehicle is used in the same way as a traditional petrol vehicle.

In winter conditions, starting from cold may seem difficult. During periods of very cold weather we recommend the use of 95 or 98 unleaded petrol in preference to B85 so as to ensure optimum starting performance.

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