We spend most of our time on the inside of a car so shouldn't it be just as clean as the outside if not cleaner? Kenotek Interior Cleaner cleans all interior surfaces including upholstery, carpeting, headliner as well as the dashboard and plastic trim. Ready to use - no mixing required. It has a light, fresh clean scent so you know it's clean. And it doesn't leave any soapy residue that can attract dust and dirt making the upholstery look worse than when you started. It's so effective that it also removes blue jean stains. Safe on upholstery, plastic and finished leather. Not for use on suede or imitation suede such as Alcantara.