Thanks to all! I did drain the tranny and the Primary but on purpose lol there is a plug down there for the engine oil but its only for the oil in the motor, not the resovoir. I will look for the drain hose for the oil tank when I get home. I think I must have removed the "sump" plug but I think I got it out and back in without doing any harm. My next question is since I removed the oil from the engine, do I need to do anything special to get oil back in there after filling the oil tank or will it drain in there before starting?