Hello, I have a 2003 Ford Fusion 1.4TDCi. It has done 27,000 miles and has just returned from its service, a journey of approx 4 miles. I checked the oil level, as they had placed less oil in this service as they did on the 18000 mile service. The oil is at the correct level, but is already black, not honey coloured as you would expect new oil to be. Would a journey of 4 miles have created this colour change, or should I be suspiciuous? Thank you.
Fresh oil in a diesel engine will turn a dirty black straight away, in a petrol engine it will look clean for a while, so i would say it is ok