Engine Ch 1 page 16 Temperature dependence of diesel fuel Warning At temperatures lower than those specified for the diesel fuel, paraffin wax may precipitate from the fuel and block filters and pipes. The engine can then loose power or stop. The diesel fuel is adapted for use in the specific climate of each country. If a vehicle or an engine is to be operated in a temperature zone with lower temperature than normal, first identify the temperature properties of the fuel concerned. It is not permitted to mix kerosene with diesel fuel that is already adapted for the climate concerned. This can damage the PDE injectors.
All use of paraffin other than kerosene is forbidden, as it causes engine damage. The properties of the fuel when cold can be improved by adopting one of the following measures before the tempera ture drops: - If the fuel concerned cannot cope with the expected temperatures, and diesel fuel is not available with the correct temperature properties, we recommend that an electric fuel heater is installed as a preventative measure. ! Important - The low temperature properties of diesel fuel may be improved by adding kerosene as a preventative measure. A maximum of 20% may be added. When refuelling, the kerosene should be added first, so that it mixes thoroughly with the diesel fuel.
It is not permissible to mix petrol with diesel fuel. In the long term, petrol may cause wear to the PDE injectors and it may also cause damage to the engine. Note: It is prohibited to use kerosene in engine fuel in some countries. - To prevent water in the fuel from freezing and forming ice, a maximum of 0.5-2% alcohol (isopropanol) may be added. Drain fuel tanks and drain or change fuel fil ters regularly. SHOP MANUAL MT41 - 12.2004