Took mine for a run today to try and force a regen of the gpf. It's been needed for a few weeks and other than the usual gruffer exhaust note, fuel economy has been pretty poor, averaged about 27mpg over the last few fill ups, well down on usual. Normally it clears after a decent run in regular driving but traffic has been pretty bad and lots of lengthy 50 zones have prevented it hence today's run. Did about an hour in the end again due to traffic but finally job done!