Changed the oil in my Freelander 1.8 yesterday. It had become the colour of black coffee and smelt as bitter. wonder how long it takes to get like that. If oil wasn`t so expensive here in Norway I would be tempted to change the oil again after a week to flush out any undesirables. The day before I changed the filter on the VDO petrol pump, in there was a dark gray sludge. Rinsed out the filter mat too and found its original colour. This car is from 2003 so it could be that both have never been changed though it had a new engine in 2007 at 90000km, now done 260000km. I am still struggling with misfiring when hot and fan and temp gauge anomalies but will come back to that later. I cannot find the air temp sensor that is shown in the Haynes manual. It is not where Haynes shows in the pic. Could it be somewhere else or not on this model? Thanks again for the help and suggestions about misfiring that I have had so far.