How to distinguish diesel
As one of the common fuels, diesel is widely used in vehicles, machinery and industry. However, there are many types of diesel on the market, and how to distinguish different types of diesel has become a concern for many consumers and practitioners. This article will provide a detailed analysis of the classification, standards, uses and identification methods of diesel to help you better understand the differences between diesel.
1. Classification of diesel
Diesel fuel is typically classified based on its sulfur content, freezing point and usage scenarios. The following are common diesel classifications:
| Classification criteria | Type | Features |
|---|---|---|
| Sulfur content | National V diesel | Sulfur content ≤10ppm, good environmental performance |
| Sulfur content | National VI diesel | Sulfur content ≤10ppm, further reducing pollutant emissions |
| freezing point | No. 0 diesel | Freezing point ≤0℃, suitable for use in summer or warm areas |
| freezing point | -No.10 diesel | Freezing point ≤ -10℃, suitable for use in winter or cold areas |
| Purpose | Vehicle diesel | For vehicles such as cars and trucks |
| Purpose | marine diesel | For use in marine engines, sulfur content may be higher |
2. Diesel standards and labeling
Different countries and regions have different diesel standards. The following are common diesel standards:
| Standard | Scope of application | Main indicators |
|---|---|---|
| GB 19147 | China vehicle diesel | Sulfur content ≤10ppm, cetane number ≥51 |
| EN 590 | European automotive diesel | Sulfur content ≤10ppm, good low temperature fluidity |
| ASTM D975 | American automotive diesel | Sulfur content ≤15ppm, suitable for various climate conditions |
3. How to distinguish the quality of diesel
The quality of diesel directly affects the performance and life of the engine. The following are several common identification methods:
1. Observe the color
High-quality diesel is usually light yellow or clear in color, while low-quality diesel may be darker or cloudy.
2. Smell
Regular diesel has a lighter smell, while inferior diesel may have a pungent odor or gasoline smell.
3. Check liquidity
In low-temperature environments, high-quality diesel has better fluidity, while inferior diesel may solidify or become sticky.
4. Check the logo
Regular diesel will be marked with standard number, sulfur content, pouring point and other information. Consumers can judge the type of diesel through the label.
4. Suggestions on purchasing diesel fuel
1.Choose according to season: Choose low pouring point diesel (such as No. 10, No. 20) in winter, and choose No. 0 diesel in summer.
2.Choose formal channels: Try to buy from large gas stations or regular suppliers to avoid low-quality diesel.
3.Pay attention to environmental indicators: Give priority to low-sulfur diesel (such as National V and National VI standards) to reduce environmental pollution.
Conclusion
The distinction of diesel is not only related to the performance of vehicles and equipment, but also closely related to environmental protection and economic benefits. By understanding the classification, standards and identification methods of diesel, consumers can choose suitable diesel products more scientifically, extend the life of equipment and reduce usage costs.
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