Starting and running Starting at low temperatures and at high altitudes Take the local environmental requirements into account. Use a fuel heater and engine heater to avoid starting problems and white smoke. Scania recommends that an engine heater should be used if the engine will be used at temperatures below -10°C or at an altitude of more than 2,000 metres. A low engine speed and a moderate load on a cold engine limits white smoke, gives better combustion and warms up the engine more quickly than warming it up with no load. Avoid running it longer than necessary at idling speed. OPM 300 en-GB 26 © Scania CV AB 2015, Sweden