Defining Diesel and petrol engines
A diesel engine can be up to 40% more efficient than a spark-ignited petrol engine with the same power output, ceteris paribus, particularly with new ‘low’ compression diesels.
The calorific value of diesel fuel is roughly 45.5 MJ/kg (megajoules per kilogram), slightly lower than petrol which is 45.8 MJ/kg. Diesel fuel is denser than petrol and contains about 15% more energy by volume (roughly 36.9 MJ/litre compared to 33.7 MJ/litre). Accounting for the difference in energy density, the overall efficiency of the diesel engine is still some 20% greater than the petrol engine, despite the diesel engine also being heavier.
EN 590:2009—FAME content of 7% as regulated by Directive 2009/30/EC. This directive also adopts mandatory biofuel requirements for refiners and introduces a 10 ppm S limit in nonroad fuels effective 2011. The EN 590:1993 included a sulfur limit of 0.2% (wt.), which became effective from October 1994
Two sets of standards establish the specifications for biodiesel fuels in the European Union:
- EN 14214 includes specifications for fatty acid methyl ester (FAME) fuel for diesel engines. B100 that meets this standard could be used unblended in a diesel engine (if the engine has been adapted to operate on B100) or blended with petroleum diesel fuel.
- EN 590, the European diesel fuel specification, is also applicable to biodiesel blends up to 7% of FAME.
Automotive Gasoline Supplier EN590 Europe
World Oil Traders – Trusted fuel suppliers of petrochemical products and derivatives:
- M100/Fuel Oil GOST 10585-75/99/2013
- D6 Virgin Diesel Bunker Fuel
- D2 Diesel Fuel/EN 590 GOST R 52368-2005
- D2 Gasoil L0.2/62 GOST 305-82
- Fuel Oil 380 CST
- Jet Fuel (JP54)/Aviation Kerosene
- #95 Octane
- Crude Oil (Heavy & Light)
- Russian Export Blend Crude Oil R.E.B.C.O. GOST 51858-2002
- Jet A1