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Diesel Fuel Quality: Testing & Importance
Regular testing of diesel fuel quality is crucial, whether it's for emergency storage or daily use. Poor quality diesel fuel can severely impact the performance of equipment and, in extreme cases, cause damage. This blog explains the breakdown of diesel quality and the significance of proper testing.
Importance of Diesel Quality
To ensure optimal performance, a diesel engine must be maintained with high-quality, clean fuel. Fuel cleanliness is critical for modern high-pressure fuel systems. Cummins continuously develops low-emission engines that meet global standards and increase engine durability.
Diesel Fuel Quality Testing
High-quality diesel fuel ignites faster and burns more efficiently, protecting equipment from potential damage. The cetane number measures fuel quality by indicating combustion efficiency. Regular tests help assess contamination and stability levels, ensuring compliance with industry standards.
Common Contaminants
- Water
- Sediments
- Microbial content
- Sulfur
How to Test Diesel Fuel Quality Using Cetane Number
Cetane, a colorless liquid carbon, ignites easily under compression. Its cetane number determines diesel fuel's combustion performance. Testing for the cetane number can be time-consuming but provides critical insights into fuel quality.
ASTM Tests Include:
- Oxidative stability
- Water and sediment levels
- Microbial content
- Sulfur content
Maintaining clean diesel fuel is essential for vehicle performance. Degradation begins 100 days after refining, with a maximum shelf life of 6 to 12 months. Contaminants and moisture build-up over time, affecting the fuel’s quality.
How Clean Is Your Diesel Fuel?
Clean diesel fuel can remove up to 97% of sulfur, significantly reducing soot emissions and improving environmental impact. New clean diesel engines meet near-zero emissions regulations while improving efficiency.
Efficiency of Cleaner Diesel
Cleaner diesel is highly efficient, with superior energy density compared to other fuels. Cleaner engines reduce emissions, improve fuel efficiency, and provide economic benefits by lowering costs and creating jobs in related industries.
Benefits of Clean Diesel
- Environmentally friendly, reducing emissions
- Non-toxic and safe for aquatic life
- Enhances engine longevity
- Supports domestic fuel production
How Fuel Becomes Contaminated
Fuel contamination occurs when foreign substances like microbes enter the diesel supply. Issues like condensation and leaks can lead to fuel degradation, resulting in sludge buildup, foul odors, and reduced engine performance.