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A disadvantage of diesel as a vehicle fuel in some climates, compared to gasoline or other petroleum derived fuels, is that its viscosity increases quickly as the fuel's temperature decreases, turning into a non-flowing gel at temperatures as high as -19 °C (-2.2 °F) or -15 °C (+5 °F), which can't be pumped by regular fuel pumps. Special low temperature diesel contains additives that keep it in a more liquid state at lower temperatures, yet starting a diesel engine in very cold weather still poses considerable difficulties.
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I used to have a diesel Landrover and that was equipped with a cold start button. It would heat the engine for a few minutes before you started it.
Quote from: DoctorBeaver on 19/01/2009 23:06:46I used to have a diesel Landrover and that was equipped with a cold start button. It would heat the engine for a few minutes before you started it.As far as I remember from my time in driving school with the VW Golf Diesel this is to get your glow plug glowing. After a while the glow plug kept glowing by itself. Don't know if this is still necessary with modern Diesels. It surely will not warm the Diesel to a temperature that lets it flow again.