At 200K miles why in the world would you go to synthetic oil?
If you really have to change to synthetic you should use a blended synthetic for a couple of changes before going to a full synthetic.
Odds are if you don't have any oil leaks from the motor now, you will after a synthetic change out.
If you really have to change to synthetic you should use a blended synthetic for a couple of changes before going to a full synthetic.
Odds are if you don't have any oil leaks from the motor now, you will after a synthetic change out.
