old vinyl

I usually start with warm water and mild dish soap on a terry cloth rag or small dish sponge (Don't be afraid of the pastic scrub side of sponge if needed. Just try a small plac first). The dish sope will take off grease and dirt and wipe off easy with dry terrycloth towel. The dirt should come off when drying, if not try again. If that doesn't work you'll have to go into the leather cleaners at the store. I'd rather use the mild system first. Good Luck!