I'm also looking for real advice on a product, not just a family of products for cleaning our cloth interior. I would like to know why my armrest on the door is turning white. Not sure what to use there. A damp cloth doesn't seem to do much. My wife has what looks like creamer stains on her chair bottom in her HR-V, which I can't get out with typical upholstery cleaners and a shampooer. I also have one small whiteish stain on my chair bottom that I haven't tried getting out yet. Will practice on my wife's fabric first.
Has anyone successfully tested a product on lighter stains on our black cloth interior?
Like Neddih said, using a brush helps a lot. Obviously, you don't want something that's too rough, but a little bit of any interior cleaner or diluted APC + agitation with a brush will work. I personally like to use the Autofiber scrub ninja, it has stiffer bristles on one side that help to get in between the fibers of the cloth.
I've been mobile detailing for a while now, and I don't think I've found another material that retains + shows dirt so bad.