I thought mine was failing, but found that between the previous owner, myself, and a salesman encouraging me to by mineral oil, there was at least 3 different kinds of oil in there, and it turned to Jell-O.
I just cleaned out the entire system and reprimed it with Semi-synthetic.
Haven't ridden it yet, but started it in the drive way for 2 5-minute runs just to make sure it was oiling and not going to seize up on the water.