Understanding EN590: The Standard for Modern Diesel Fuel

“Understanding EN590: The Standard for Modern Diesel Fuel”


In the world of diesel engines, fuel quality is paramount. EN590, the European standard for diesel fuel, sets the benchmark for quality and performance. This standard ensures compatibility with the latest engine technologies, optimizing efficiency while reducing harmful emissions.

Background of EN590

EN590 was introduced in the 1990s as a response to increasing demands for cleaner, more efficient diesel fuel. This standard outlines specific requirements for sulfur content, cetane number, density, viscosity, and other critical properties of diesel fuel.

Key Features of EN590 Fuel

  1. Low Sulfur Content: EN590 mandates a maximum sulfur content of 10 ppm, significantly lower than previous standards. This reduction in sulfur content leads to fewer emissions of sulfur dioxide, a major contributor to acid rain.
  2. Cetane Number: The standard requires a minimum cetane number of 51. A higher cetane number indicates a faster ignition of the fuel, leading to smoother engine operation and reduced emissions.
  3. Density and Viscosity: EN590 specifies the density and viscosity of diesel fuel, ensuring optimal flow and atomization in the engine, crucial for efficient combustion.
  4. Cold Weather Performance: The standard includes requirements for cold filter plugging point (CFPP), ensuring the fuel remains fluid and functional in cold temperatures.
  5. Biofuel Compatibility: EN590 diesel can contain up to 7% biodiesel, aligning with environmental goals and promoting renewable energy sources.

Benefits of EN590

  • Enhanced Engine Performance: Compliance with EN590 means improved engine efficiency and longevity.
  • Reduced Environmental Impact: Lower sulfur content and higher cetane number result in cleaner combustion, significantly cutting down on greenhouse gas and particulate matter emissions.
  • Compatibility with Modern Diesel Engines: Designed to meet the needs of the latest diesel engine technologies, EN590 fuel supports the high-performance standards of current and future engines.


EN590 is more than just a standard; it represents a commitment to environmental responsibility and technological advancement in the diesel industry. Its widespread adoption is a testament to the industry’s dedication to sustainability and performance.

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