If you are saying to not seeing leaks on the floor for oil or so.That does not mean you have one.The only way to see it if you lift it up.What leak are the valve covers,left side cylinder head,oil pan or oil level sensor.and the front main seal or rear main seal...If they are all good than someone realy took care of the car.....Ok now your now your rack leaks,well it is an easy fix...How about your power steering pump?or the tranny output shaft seal,or your diff?......But anyways if you are happy that you have a good car than i am happy,cause they do leak...And i am not going to mention the timing chain,cause we have been there before