Well done the oil change today thank god i did the oil in it was BLACK and i have only done 5-6K since i bought the car and they gave it a service the day before i got it ,they must have used Sh*ty oil. I,ve done about 20 miles since the change and noticed a difference right away idle noise etc would highly recommend Mobil1 super syn.
Unless they put the same used oil back in! lol
Where do you get it for 23 quid then?
You should try some flush type stuff with the next change if its been neglected, should help get some of the sh1t out.