Originally posted by v6contourse:
Quick Question: What is the latest you can switch to synthetic (mileage wise) without it causing any leaks or anything like that?





Most people say 60k. I think you could switch much later. I don't know if there is any foundation behind the leaking engine stories. Google it, and see what you find. In the end, it's up to you, if you feel comfortable with it. I switched at 60k exactly, no problems at all.


-Philip Maynard '95 Contour [71 STS | Track Whore] '97 Miata [71 ES | Boulevard Pimp] 2006 autocross results