Cleaner won't work. They are like a sponge and are soaked. Each time they get hot the old fluid is going to seep out. Believe me I am a penny pincher myself, but have never been able to get brake fluid out of the shoes and pads.

Sometimes on equipment that has to be running and we don't have the parts in stock, I have taken a torch and played the flame over the shoes to burn the oil out of oil soaked shoes. But this is just a temp solution in a crises.