DONT use Vaseline gel. I don’t know a the reasons but its a big no no.or so I am told. I know it will clump dust and junk,
Most wax and lite oils work well mineral oil works well. My can had s mix of hard wax and lite oil wet rag with oil wrap wax in rag works well. Paul says in a number of videos no to be concern the oils. will not hurt finish. I belive it is part because there is so little. Use what ever with care.