General instructions
Diesel fuel must comply with DIN EN 590.
Cetane number not less than 51.
RME Fuel (biodiesel fuel) according to DIN 51 606.
Diesel vehicles can be operated on PME fuel (vegetable oil methyl ester).
If using biodiesel, fill the tank with PME fuel only.
(The original article is posted on the website: VWMANUAL.ru)
Note: Only a slight deterioration in the vehicle's traction and dynamic qualities may be observed.
Fuel consumption of RME may be slightly higher.
Using fuel that does not meet the above standard may cause clogging of the fuel filter.
Biodiesel fuel is effective down to outside air temperature of -10°C.
At outside temperatures below -10°C, it is recommended to fill the tank with diesel fuel.
Operation in winter conditions
When using summer diesel fuel at outside temperatures below 0°C, engine operation may be disrupted because the fuel becomes viscous due to paraffin deposition.
Therefore, in Germany, winter diesel fuel is used during the cold period of the year, which, depending on its brand, ensures uninterrupted engine operation at temperatures down to –15°C or –22°C.
In countries with different climatic conditions, there are other grades of diesel fuel, which for the most part have temperature limits for their use that differ from those listed above.
The vehicle is equipped with a fuel filter heating device. Thanks to this, fuel designed for use at temperatures down to -15°C can be used at temperatures down to approximately -24°C.
If, at an air temperature below -24°C, the fuel has become so thick that the engine will not start, it is enough to let the car stand for some time in a heated room.
Various additives, gasoline and other additives that increase its fluidity should not be mixed with diesel fuel.
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