I didn't want to jump all over someone elses thread as I usually do so I thought I would start a new one. Has anyone else found by running synthetic in the front axle they get leaks at relatively low miles. I went to synthetic at 5K miles and was leaking on one side around the wipers at 20k miles. Dealer repair - dealer put in regular 90#. I changed back to synthetic and was leaking on the other side at 30k miles. Dealer repair with regular 90#. I left this in and have not had a leak for 30k miles. Miles not exact, but you get the idea. A reliable non-drunk friend once said "If you have a leak, synthetic will find it". Any others with similar leaks that have a rough idea of the miles they are getting with/without synthetic?