Ekodiesel ULTRA

Ekodiesel ULTRA is a top quality fuel meeting the most stringent environmental standards. Each grade of diesel fuel is designed for a different season of the year to ensure reliability in all weathers.


The Ekodiesel ULTRA diesel fuel is produced from carefully selected components, whose quality is ensured through continuous monitoring across all stages of production. The fuel contains a range of additives which prevent corrosion, water emulsification and foaming. Its production process ensures that Ekodiesel ULTRA remains resistant to microbial contamination and meets the lubricity and oxidation resistance requirements. In order to protect the environment, Ekodiesel ULTRA is guaranteed to have a sulfur content of less than 10 mg/kg, and its cetane number of more than 51 reduces fuel consumption and facilitates cold start.

Marked with letters B, D or F respectively, the three grades of Ekodiesel ULTRA have each different low-temperature properties (cold filter plugging point – CFPP) required for temperate climate fuels:

  • Grade B Ekodiesel ULTRA with a maximum CFPP of 0°C,
  • Grade D Ekodiesel ULTRA with a maximum CFPP of -10°C,
  • Grade F Ekodiesel ULTRA with a maximum CFPP of -20°C,

Different Ekodiesel ULTRA grades should be used in different seasons in accordance with the following guidelines:

  • grade B – in summer, from April 16th to September 30th,
  • grade D – in transition periods, from March 1st to April 15th and from October 1st to November 15th,
  • grade F – in winter, from November 16th to the end of February.

To ensure smooth start and trouble-free operation of the engine at low temperatures, Ekodiesel ULTRA made for winter and transition periods contains components modified in production process, depressing agents which change the structure of paraffin crystals to prevent filter plugging, and agents which disperse paraffin crystals.

No manganese-based metallic additives, including methylcyclopentadienyl manganese tricarbonyl (MMT), are used by ORLEN to produce Ekodiesel ULTRA.

Ekodiesel ULTRA complies with the Minister of Economy’s Regulation of October 9th 2015 on quality requirements for liquid fuels (Dz.U. of October 23rd 2015, item 1680), the Minister of Economy’s Regulation of October 9th 2015 on quality testing methods for liquid fuels (Dz.U. of October 23rd 2015, item 1679), and Polish standard PN-EN 590 Automotive fuels − Diesel fuels − Requirements and test methods.


Ekodiesel ULTRA is dedicated to compression-ignition engines used in land transport vehicles, in particular in large urban centres and protected areas.


Property Unit
Lower limit Upper limit
Cetane number - 51,0 - PN-EN ISO 5165
Cetane index - 46,0 - PN-EN ISO 4264
Density at 15 °C kg/m3 820,0 845,0 PN-EN ISO 12185
PN-EN ISO 3675
Polycyclic aromatic hydrocarbons content %(m/m) - 7,0(1) PN-EN 12916
Sulfur content  mg/kg  - 10,0 PN-EN ISO 20846
PN-EN ISO 20884
Manganese content mg/l - 2,00 PN-EN 16576

Flash point °C 56,0 - PN-EN ISO 2719
Carbon residue (on 10% distillation residue) %(m/m) - 0,30 PN-EN ISO 10370
Ash residue %(m/m) - 0,010 PN-EN ISO 6245
Water content mg/kg - 200 PN-EN ISO 12937
% (m/m) - 0,020
Total solid contamination mg/kg - 24 PN-EN 12662
Copper strip corrosion (3 hours at 50 °C) class 1 PN-EN ISO 2160
Oxidation stability g/m3 - 25 PN-ISO 12205
h 20,0(2) - PN-EN 15751
Lubricity, corrected wear scar diameter (wsd 1,4) at 60°C mm - 460 PN-EN ISO 12156-1
Viscosity at. 40 °C       PN-EN ISO 3104
  for grades B, D, F mm²/s 2,000 4,500
Fractional composition
for grades B, D, F
      PN-EN ISO 3405
  Distillation recovered up to 250 °C %(V/V) - < 65,0
  Min. distillation recovered up to 350 °C  %(V/V) 85,0 -
  95 %(V/V) Distillation recovered up to °C - 360,0
Fatty acid methyl ester (FAME) content %(V/V) - 7,0(3) PN-EN 14078
Cold filter plugging point (CFPP) °C     PN-EN 116
  for grade B   - 0
  for grade D - -10
  for grade F - -20
Cloud point: °C -   PN-ISO 3015
  for grades B, D, F     (4)

1) Raised ORLEN's standard
2) If the FAME content of diesel fuel is more than 2% (V/V), oxidation stability must be identified in accordance with EN 15751.
3) FAME should comply with PN-EN 14214.
4) Not subject to standardisation, value provided in compliance certificates.

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