Reason I posed the question,was I was reading an article on sports car forum I'm on,the reason why diesel has gone more expensive than petrol, as it was always cheaper.
And someone posted an article stating that diesel is now more expensive, because according to the article.
A it is now more expensive to produce because of the extra reductions of polutants that has to be taken out of it now, because of green regulations.
B it has become harder to import because there is actually less of it around,out of each barrel the percentage of diesel produced has reduced because of the extraction process,making it less available and more expensive.
C A fact that has arisen out of the scrapage scheme, the government implemented,was, the cars that were taken out were mainly small engine,high mpg petrol engines,which are cheaper than diesel alternatives, and also on small cars not to far apart mpg wise,
so need for diesel has reduced coupled with the governments co2 levels for taxation making it cheaper to tax petrol cars.
The report was basically saying that with the take up of hybrid/electric type engines being pushed by governments and climate change legislation, inner city bans on diesel engines without up to date filters and new diesel engines, the days of diesel at the pumps was slowly being strangled and will come a day when diesel will be a minority at the pumps.
Diesel used by transport and industry,would be put on a different level, as farming red diesel is now, and the motorist using diesel would be slowly priced off the road.