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Diesel Fuel

Diesel fuel is, traditionally derived from petroleum, which is also known as fossil diesel. To differentiate it from Biodiesel, it is commonly called petrodiesel now.

Recently, as part of the counter-measures due to environmental issues, Ultra-low-sulfur diesel - ULSD, is a standard for all of the petrodiesel fuel available in Europe and North America for its substantially low sulfur contents.

However, Biodiesel is the lowest emission fuel available for diesel engines.
And, Biodiesel is the only fuel allowed in some North American national parks because its spillages will completely bio-degrade within 21 days.

Furthermore, Diesel engines are the most efficient car internal combustion engines today.

EU Diesel Fuel Grades and the Sulfur Content

Sulfur Limit (ppm)

 Implementation Date

Emmission Standard




 1996  EURO 2 Malaysia, Philippines, Bhutan, Brunei, Vietnam Malaysia, Philippines & Brunei commit to implement EURO 4 by 2016


 2000  EURO 3 India, Nepal  


 2005  EURO 4 China, Korea, Singapore, Thailand Singapore to implement EURO 5 by 2014


 2009  EURO 5 Hong Kong, Japan, Taiwan, Malaysia*  

 * Leading by BHPetrol, since 2014 onwards Feul Stations in Malaysia have gradually expand their Euro 5 supplies throughout the country. 

What is the matter of sulphur content in Diesel Fuel?

When fuel is burnt in the engine, all remaining sulphur is converted to sulphur dioxide and this is emitted into the atmosphere through the exhaust pipe. Some of this sulphur dioxide reacts with water forming acidic droplets, which contribute to diesel particulate emissions.

Lower sulphur content leads to lower sulphate emissions, which also reduces Particulate Matter by weight. There will be a positive effect on the environment, especilly the air quality will benefit from the implementation of Lower Sulphur fuel.

ULSD also beneficial for some vehicle and engine manufacturers as it allows particulate traps and catalysts to work more efficiently and thus improve the durability.
Lower Sulphur content fuel means more environmental friendly.

Source: UNEP Transport Unit / Shell