OK, so I have booked a leak down test however it looks like the oil control rings are either gunked/stuck or worn out.
So I am going to look at replacing the oil control rings, however I have a number of questions:
1) Is it worth replacing the compression rings at the same time?
2) if yes to the above with the cylinder walls need a hone?
3) Will I need oversized rings or the standard OEM sized ones?