Correct Selection Of Diesel Fuel For Bus
Correct Selection Of Diesel Fuel For Bus
The freezing point and cold filtration point are important indicators to characterize the low-temperature performance of diesel fuel. The freezing point (SP) is the highest temperature at which diesel loses its flowability in a low-temperature environment; The Cold Filter Point (CFPP) indicates the maximum temperature at which diesel fuel can cause filter blockage when passing through the diesel engine fuel supply system. For light diesel fuel, the cold filtration point is more important than the pour point index in practical use. This is because the cold filtration point is directly related to the low-temperature performance of diesel, while the solidification point is mainly related to the storage and transportation of diesel.So how to choose the correct diesel fuel for use at different temperatures?
According to the requirements of GB 252-2000 standard, the selection of light diesel grades should follow the following principles:
1. 10 # light diesel is suitable for diesel engines with preheating equipment;
2. No. 5 light diesel is suitable for use in areas with a risk rate of 10% and a minimum temperature of 8 ℃ or above;
3. No. 0 light diesel is suitable for use in areas with a risk rate of 10% and a minimum temperature of 4 ℃ or above;
4. -10 # light diesel is suitable for use in areas with a risk rate of 10% and a minimum temperature of -5 ℃ or above;
5. -20 # light diesel is suitable for use in areas with a risk rate of 10% and a minimum temperature of -14 ℃ or above;
6. -35 # light diesel is suitable for use in areas with a risk rate of 10% and a minimum temperature of -29 ℃ or above;
7. No. -50 light diesel is suitable for use in areas with a risk rate of 10% and a minimum temperature of -44 ℃ or above.
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