I have noticed from some of your articles that diesel particulate filters are likely to cause problems, especially in low mileage vehicles used for short journeys. I have a Ford Focus 1.6 LX TDCI registered in April 2006 with the 110hp engine. I think that it has a particulate filter as the servicing includes changing the particulate filter oil. The car has done 27,000 miles and will do about 6000 miles a year, mainly long journeys. Is the filter in the car likely to fail in the near future? Should I consider changing the car or is the cost of a new filter less than the cost of buying another car?