I need to clean some parts that are really grimy with oil and grease caked on them like an oil pan/pan baffle, return tube, other transmission and engine parts. I hate to have to use solvent as it makes a real mess and tough to dispose of. Does anyone know of a better way to remove the greasy stuff, like TSP or some other product that is effective and relatively inexpensive (and easily disposed of when done). Thanks for any suggestions.