I've got a friend that has the same car with over 200k miles on it and I'm sure is on the original chain. Is there anything to check/inspect to verify it needs to be replaced? Should I just advise her to go ahead and replace it (along with the guides) between now and 250k miles?
I have noticed when driving the car that the hot idle oil pressure is less than 1 bar
. Do the oil pumps get tired on these engines?