I have used baking soda washes, followed by Epsom salts/distilled water refills in the past . I assure you, it does work, though not all the time. Lots of variables involved. This gets to be a whole separate hobby, but it's fun. My greatest success sat in a field for a couple of years after it was retired.It was still starting everything when my buddy sold the truck it was in. Have fun, H.