have a 16v kr engine code gti. Decided not to be lazy and change the oil myself. My friend gave me two k&N filters as he no longer has a golf. I know they are the correct ones for the golf . I just wondered that because they say performance, they shouldn't be used on a road going car. The nut on the end of the filter casing would make getting the filter off a lot easier at the next oil change though! As for the oil what the best brand or are they all much of a muchiness and should I just stick to manufacturers advice. I suppose they will know best but I just wondered about the higher mileage engine. Cheers in advance.