dragged the old grayco parts washer out today and after i put a new electrical cord on it,clean it out, i will be ready to fill it up with........ what are you using. napa has 5 gal bucket of parts washing cleaner. we used to use diesel fuel or kerosene and add a can of gunk to it to take the smell away. if apple cider vinegar or white vinegar would take off grease/oil, would that work or is vinegar too flammable? what say you cleaning experts.