Fuel RME (biodiesel fuel) according to DIN 51 606.
Diesel vehicles can be run on PME fuel (vegetable oil methylester).
For information on where to fill up with PME fuel, contact a Volkswagen service center or your local car club.
Features of using RME fuel
PME fuel is derived from vegetable oil (mostly rapeseed oil) by a chemical process in which vegetable oil and methanol are converted into PME fuel using a catalyst.
PME fuel contains almost no sulfur. Therefore, during the combustion of this fuel, almost no sulfur dioxide is emitted.
Combustion products contain less carbon monoxide, unburned hydrocarbons, particulate matter (for example, soot), than is obtained by burning conventional diesel fuel.
The content of all harmful substances in the exhaust gases is less than that stipulated by the legislation.
PME fuel is readily biodegradable.
PME fuel retains sufficient fluidity up to a temperature of approximately 10°C.
When the outside temperature is below 10°C, diesel fuel must be added to the fuel tank to prevent flocculation in the biodiesel. The ratio of diesel and biodiesel in the mixture should be approximately 50:50.
PME fuel can be mixed in any proportion with conventional diesel fuel.
Only a slight deterioration in the traction and dynamic qualities of the car can be noted.
PME fuel consumption may be slightly higher.
Operation in winter conditions
When using summer diesel fuel at an outside air temperature below 0°C, engine malfunctions may occur, as the fuel becomes viscous due to paraffin precipitation.
Therefore, during the cold period of the year, winter diesel fuel is used, which, depending on its brand, ensures uninterrupted operation of the engine at temperatures down to -15°C or down to -22°C.
In countries with different climatic conditions, there are other grades of diesel fuel, which for the most part have different temperature limits for their use from the above. The necessary information about the grades of diesel fuel used in a given country can be obtained from a Volkswagen service company or at fuel stations.
Fuel filter heater
The vehicle is equipped with a fuel filter heater. Due to this, fuels designed for use at temperatures down to -15°C can be used at temperatures down to approximately -25°C.
If, at an air temperature below -25°C, the fuel has become so thick that the engine does not start, it is enough to let the car stand for some time in a heated room.
Diesel fuel should not be mixed with various additives, gasoline and other additives that increase its fluidity.
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