My bathroom shower floor was looking pretty grungy. I tried cleaning it with some bathroom cleaner but it didn't touch it.(did absolutely nothing) My wife said to use the magic eraser. I was skeptical but gave it a shot. WOW!!! It cleaned it instantly. No hard scrubbing, no special cleaner...just a little water and light pressure. I couldn't believe it. I assumed it would be abrasive but it doesn't feel gritty at all. I would definitely try it on some automotive parts.