I have a 2005 Ford Focus 2. I did the treatment in 2014 and 180 000 km because the box had become hard and catchy especially on the 1st, 2nd and 3rd. The effects have a little time to arrive on these reports (2000 km count well) because I actually rather the highway and the first three reports were little used. Now the box and again become more flexible and small speeds cling more. I am satisfied with the product which is not more expensive compared to other brands.