3.7 Diesel Engine HeatersThe engine shall be equipped with a thermostat controlled coolant immersion heater, (powered from the auxiliary power distribution) to aid engine starting, in cold weather. The heater shall be automatically switched off, when is running. The fuel injection pump shall be fitted with a mechanical governor/electronic controller capable of governing to ISO 8528-2 G2; mechanical governor/electronic control shall include adjustments of gain, damping, and a ramping function to control engine speed and limit smoke while the unit is starting, standard protection devices, 12/24 Volt starting batteries, capable of starting the diesel engine at ambient temperatures down to minus 20°C, based on a minimum of six (6) consecutive start attempts.