Well, I am about 50 miles into the first part of the Auto-RX treatment. I have a minor oil leak, and this is why I have decided to use ARX. I am the second owner of this vehicle, and after I purchased it, I went to synthetic motor oils, and got an oil leak. Now I have Castrol GTX 10w30 and 12oz of ARX. It is running like CRAP at the moment. A lot worse then before the ARX. Any suggestions?