I've just checked the oil in my car again and like the last time I did it a fortnight ago I think the colour is a bit darker than it used to be. It's not black or thick or anything, just a darker dirty brown colour with the same consistency. I've had the car since November and up until a couple of weeks back every time I checked it it was a lighter golden colour (like the Zetec-S I had before this always was). Is this anything to worry about or contact the dealer about? I don't know if it's to be expected with this engine or whether something has gone bad! The level has always been a bit above the max line too, but so was my last car every time it was serviced and seeing as this is always with the same dealer I assume this is just what they do (if it was way over I would have mentioned it of course).
Also a couple of weeks ago I noticed the coolant level had dropped a bit, it used to be on the join in the tank but it's now just on top of the minimum line. It hasn't dropped since then so it's just been a one off. I don't think it's gone into the engine oil as it's not cloudy and there's no white gunk under the oil filler cap, and as far as I'm aware this wouldn't make the oil darker.
Sorry for the long post, but any opinions on the above? Cheers.