Sunny:You're right,loosing 13 oz. is a huge amount. I suspect a bad seal. Yet I do not see any on the garage floor. Then again it may leak only when running.I am taking it to the dealer tomorrow to find out where the fluid is going.Thanks for the help,Pat

Thanks Colonel for the help. Sounds like not all is lost.Regards,Pat

Haste makes waste and usually costs money as well. I needed to top off the auto trans fluid and knowing the Vibe is a GM product and all GM products have called for Dextron III trans fluid since Truman was president, I added some Dextron III Mercon. Well, the manual specs T-IV.Anybody know if I am i...