Has anyone in the rust belt or areas where salt 'M.C' (should be banned) is used for snow melt notice rust on their vehicles? If so, how have you treated it? I know you can have a paint shop use a organic linseed oil solution that supposed to work really well but has to be reapplied every 2-3yrs. I'm more concerned with 14' and newer model G's but I have a strong feeling they haven't changed anything on how the undercarriage is treated over the last 20yrs but I could be wrong.