I have been on this forum to effectively complain that my accord was getting nothing like the miles per gallon of other users. Being new to the Accord 8th Generation Dtec on a motorway I tended to keep the revs low within the precept arrows and only open it on A and B country roads. Recent Journeys tended to be small and local though it did include 3 miles of dual carriageway very often we were only getting 36 MPG. Now until now I did not know of how to nurture my DPF until the warning light for problems with it came straight on and I had to go to a main dealer for a reset and cleanout. Now looking at forums for this and other diesels suggest giving the engine a good constant work. The problem being I cannot tell what state the DPF is and how blocked it is, when it comes to its next regeneration. With my new found knowledge and clean DPF I purposely drove at higher revs at 75 mph on the motorway in 5th for 10 mins. Then went about my drive along the motorway without trying to save fuel. On the way back I decided to save fuel the trip meter was set I trundled along at 55 mph in 6th gear the car produced about 48 MPG over 50 miles travelled. I was now bored and put my foot down which gave the engine some work being at 2200 RPM + surprisingly the MPG did not go down on the same setting though this part of the journey was around 75MPH it got even better and the car had some poke which for the first time was discernable. Has anyone heard of the regeneration system being a method of using fuel constantly or at least to a greater extent when the engine is used at lowered revs to conserve fuel in the normal way of things. It seemed that the little blast I gave the car had cleared its throat of carbon. The best analogy I can give is the car has internal bleeding, it is bleeding but you cannot see it apart from at the pump or in the DPF. Plus the manual suggests driving at 37 MPH for 10mins this does mention what gear you have be in to get the revs right to make the engine work. Can I ask the question what the consensus is to give a DPF a good seeing to?