I came across a small Lodge grill when I was cleaning out my garage. Wasn't used much but I guess from sitting in the garage for 2 years, the thing is covered in rust (the grate and the grill). Anything I can do to save it? I can't find a pic online, but its about 12-14 inches in diameter, circular, and has a rod on one side that you use to adjust the grates. Thanks for any help.