How to Treat Diesel for Extreme Cold
- 1). Pour cold weather additive into tank of diesel fuel. This can even go into the tank of a vehicle. All manufacturers have different guidelines, so follow the manufacturer's guidelines for the amount of additive per amount of diesel fuel.
- 2). Place tank or vehicle in a heated garage to keep the temperature of the diesel above freezing. Do not apply direct heat to the diesel tank, as this could cause an explosion.
- 3). Have a block heater put on your vehicle to keep the engine warm and help to keep the diesel flowing. The block heater is plugged into an outlet and warms the engine of the vehicle when the vehicle is not running. A trained professional should install a permanent block heater so the engine of the vehicle will not be damaged.
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