[3twinridges]

I too use mineral spirits in a bucket for small parts, followed by detailing with wire brushes on a dremel. If it's small enough a walnut shell tumbler is a good investment for final polish. For big stuff with caked on grease, find a janitor supply store and buy the 1 gallon size of citrus cleaner, use a zep spray bottle, a good stiff brush, and a pressure washer. The citrus cleaner at HD is weak but from a janitor store....after you clean the first part you will ask yourself if you should go put on a 2nd pair of gloves!