Thanks Huney1, I will look into that. It sounds like an good (cheap) alternative.
I noticed some back tar-like goo in the top of ther overflow tank. I wager this means I need a flush? Would I do that before or after the "bars leak?"
Also, I'd still love to know more about that bulletin - if for nothing else than to prove to the lady at the GM service desk that I am not making this up. Any hard info on this?