What are the differences between B5 diesel and No. 0 diesel?
2 Answers
1. Different sources: B5 diesel is blended by using 'gutter oil' discarded from the catering industry and sewer pipelines through a series of biochemical reactions, mixed with ordinary diesel in a ratio of 5:95. No. 0 diesel belongs to ordinary diesel, mainly composed of diesel fractions produced through processes such as crude oil distillation, catalytic cracking, thermal cracking, hydrocracking, and petroleum coking, and further refined with additives. It is obtained from crude oil, shale oil, etc., through direct distillation or cracking processes. 2. Different environmental impacts: B5 biodiesel can reduce the emission of heavy metals and fine particulate matter by more than 10%, with a nitrogen oxide purification efficiency of up to 80%. No. 0 diesel contains more impurities and is more prone to producing soot during combustion, causing air pollution. The soot produced after diesel combustion may have carcinogenic effects. 3. Different scales of use: B5 biodiesel is currently used only in small-scale applications in some cities, and its production and use will continue to expand. No. 0 diesel belongs to ordinary diesel, and diesel vehicles mainly use the latter five grades of diesel. When the temperature is above 4℃, No. 0 diesel is selected, so No. 0 diesel is widely used at present.
As a seasoned car enthusiast, I must say the main differences between B5 diesel and No. 0 diesel lie in their composition and applicable scenarios. No. 0 diesel is a pure petrochemical product with a freezing point around 0°C, making it suitable for warmer environments, such as summer use, to prevent winter low-temperature solidification and fuel line blockages. On the other hand, B5 diesel contains 5% biofuel, derived from sources like vegetable oil, offering significantly better environmental performance—reducing carbon emissions by about 20%. However, it may not be compatible with some older diesel vehicles, potentially causing fuel filter blockages or slight power reductions. When choosing which to use, consider the season and region: No. 0 diesel is hassle-free in high-temperature southern areas, while B5 is popular in urban promotion zones and more sustainable in the long run—but always check your vehicle manual first to avoid engine damage. For daily maintenance, B5 requires more frequent fuel system cleaning to prevent impurity buildup. In summary, No. 0 focuses on temperature adaptability, while B5 emphasizes eco-friendliness—never mix them to avoid issues.
