Steel wool doesn't belong anywhere close to your truck , It's just raw steel and small filaments will break off and embed themselves into your paint , it scratches chrome and aluminum trim and really has NO use on a car or truck ,
Use Bronze wool that has the same cutting properties as steel wool yet it won't rust it's safer on chrome it's self lubricating and won't leave raw steel in your paint .
Don't want bronze wool use a scotch brite pad which is aluminum oxide grit bonded to a synthetic pad again it won't increase rust
https://en.wikipedia.org/wiki/Bronze_wool