Thanks so much Larry for the advice. A couple of questions though:

You don't think that the syn oil used in the manual tran. would cause some leaks? I know you shouldn't use it in the engine...but is it ok for the tran. as you suggest?

You suggest replacing the plug on the back of the injector. Is this just some kind of washer? Any special tools or instructions to remove an injector?

I will look long and hard to see if the leak is actually the rear main seal. It might just be the upper pan or something like that. I will have to clean that area of the engine well to get a better look.

Anyone else use anything different besides what was mentioned for their manual trans fluid?

This is a great forum. I really enjoy reading and learning from others who truly enjoy their cars.

thanks,
mike