I usually use a hot damp rag to wipe down my leather seats (light grey colored) and then use a condition/cleaner but it never really took the "dingy" look out. My cousin recommended me to use a Mr. Clean Magic Eraser. My first thought was "There's bleach in those things, won't it dis-color my seats"? He said it wouldn't so i tried it in a small area on the seats and it worked perfectly. It took 2 of the erasers to clean one seat, but it definitely had them looking brand new. I would recommand usuing latex gloves while using them though.