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2025
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Sudden Winter Night: Temperatures Drop Below 0°C - The Complete Guide for Trucks to Survive Winter
It hasn't even reached the autumnal equinox yet, but the temperature in Heilongjiang has already dropped below 0°C. Various regions in Daxing'anling, Heilongjiang, are experiencing the first snowfall of autumn, and the minimum temperature in Mohe City has already fallen below 0 degrees. Summer is over, and a cold wave has arrived. Truck drivers should also inspect these parts in advance to prevent problems before they occur.
▎High-standard diesel: Fill in advanceFirst, let's explain the concept of the pour point. The so-called pour point is an important indicator for evaluating the flowability of diesel; it indicates the lowest temperature at which the fuel can be transported without heating. The pour point of diesel refers to the highest temperature at which the oil loses its flowability under specified conditions.
Technical Requirements and Test Methods for Automotive DieselUnlike gasoline,
which can have a pour point of around -60°C, ordinary No. 0 diesel has a pour point of only 2-3°C. According to the "Technical Requirements and Test Methods for Automotive Diesel," the diesel grade directly corresponds to its pour point. However, during actual transportation, diesel will inevitably absorb moisture, so it is best to use a higher grade when refueling.1. No. 5 diesel is suitable for use when the temperature is above 8°C;2. No. 0 diesel should be used when the temperature is not lower than 4°C;3. No. -10 diesel should be used when the temperature is not lower than -5°C;4. No. -20 diesel should be used when the temperature is not lower than -14°C;5. No. -35 diesel should be used when the temperature is not lower than -29°C;6. No. -50 diesel should be used when the temperature is not lower than -44°C.● Remember to replace antifreeze that has been mixed with water.
The main function of antifreeze is to prevent freezing. The freezing point of ordinary water is 0°C, whereas the freezing point of antifreeze is generally around -30°C, which can prevent the coolant from freezing and affecting the vehicle's cooling system during cold winter stops.
If water was poured into the radiator as an emergency measure in summer, please replace the antifreeze before the arrival of severe winter. Besides antifreeze, it's also best to check the windshield washer fluid; otherwise, if the windshield becomes dirty and the fluid cannot be sprayed, visibility will be very dangerous.
▎Check the brake air lines and fuel lines in advance.
Everyone is familiar with the dryer tank; it is used to filter moisture from the air in the pneumatic system, preventing corrosion of air reservoirs and various pumps and valves. Whether the dryer tank functions properly directly affects the performance of the brakes.After a humid and sultry summer, the lifespan of the dryer tank is almost over. To ensure safer and more profitable operation, it is important to check the condition of the dryer tank in time.
In addition, for the exposed spiral pipes in the air circuit, everyone should also check their flexibility before winter. If there are any cracks or wear, they should be replaced as early as possible.
Having finished discussing the air circuit, let's talk about the fuel system. Water is a common contaminant in diesel and can shorten the engine's lifespan. Moreover, diesel tends to absorb moisture, which is why diesel filters are equipped with oil-water separation functions.
Before winter arrives, check the fuel filter and replace it on time according to the mileage. Regularly inspect the oil-water separator and drain the filtered water promptly.
▎ In cold weather, the battery can easily fail.
Whether it’s a regular battery or a power battery in the vehicle, their low-temperature performance is not as good as when it’s around 20 degrees Celsius. In winter, with low temperatures, starting the vehicle becomes more difficult and power consumption increases. If the battery has aged (typically 3-5 years), it’s best to check the battery performance in advance to avoid being unable to start the vehicle.● Editor’s NoteAs the old saying goes, maintenance keeps a truck running, while repairs only get it back on the road. So, make sure to maintain and service your vehicle in advance. Don’t wait until you and your cargo are stranded on the road shivering and regretting not preparing earlier.
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