<P> Biodiesel also may reduce health risks associated with petroleum diesel . Biodiesel emissions showed decreased levels of polycyclic aromatic hydrocarbon (PAH) and nitrited PAH compounds, which have been identified as potential cancer - causing compounds . In recent testing, PAH compounds were reduced by 75--85%, except for benz (a) anthracene, which was reduced by roughly 50% . Targeted nPAH compounds were also reduced dramatically with biodiesel fuel, with 2 - nitrofluorene and 1 - nitropyrene reduced by 90%, and the rest of the nPAH compounds reduced to only trace levels . </P> <P> This category of diesel fuels involves converting the triglycerides in vegetable oil and animal fats into alkanes by refining and hydrogenation, such as H - Bio . The produced fuel has many properties that are similar to synthetic diesel, and are free from the many disadvantages of FAME . </P> <P> Dimethyl ether, DME, is a synthetic, gaseous diesel fuel that results in clean combustion with very little soot and reduced NOx emissions . </P> <P> In the US, diesel is recommended to be stored in a yellow container to differentiate it from kerosene and gasoline, which are typically kept in blue and red containers, respectively . In the UK, diesel is normally stored in a black container, to differentiate it from unleaded petrol (which is commonly stored in a green container) and leaded petrol (which is stored in a red container). </P>

Whats the difference between on road and off road diesel