Economic supply and demand phenomena as well
as efforts to make paraffin more affordable to the poor have resulted in a large price difference
between diesel and paraffin. Unscrupulous fuel suppliers stand to make large profits by
fraudulently diluting diesel with paraffin or simply selling paraffin as diesel . read more>
We can generally understand what is wrong with a diesel engine by the colours of smoke
emitted from the exhaust. There are three basic colours - black, white and blue. read more>