Does anyone know why my mpg has significantly reduced over the last year since a dpf clean please?
I drive 15,000 miles a year with mixture of urban and motorway driving was averaging 56mpg.
I have had a service including oil change, oil filter, air filter and fuel filter but now can't get above 47mpg average even on a longer run.
I've got a mazda 6 2.2 diesel 2010