Fortunately, or unfortunately depending on how you look at it, I have a lot of experience with grease spots on laundry. I used to work at an auto repair shop, and now I’m married to a kitchen manager. Can we say grease city? I knew you could.When I was working at the auto repair shop, I asked the guys how they got the grease stains off their clothes and they typically had two methods: Simple Green and Dawn dish-washing liquid. I’ve found if Simple Green can’t get it clean, Dawn could, and vice versa.One thing I really like about Simple Green is, it works on lots of grease problems. It’s really handy to have around for that very reason. It also whitens up white tennis shoes! It does EVERYTHING! Crew Chief note: for years I have used Dawn to clean oil out of cooling systems when thy have a oil cooler leak seems to cut the oil and float it away the best I just wish I knew why the strange thing is it doesn’t work well on greasy floors News source: Home-ec