Not positive if it'll work on nylone, but on cotton clothes(jeans, shirts, sweatshirts, etc...) I use a product called electroclean. It's in an aerosl can and its made for cleaning and degreasing engine parts. Very strong stuff and best cleaner I have ever used. I've gotten oil on my clothes, washed and dried them...still didnt come out, put the electro clean on them, threw em back in the washer, and they came out clean. You could try to use some other kinds of parts cleaner if you can't find this, don't know if it'll work as good though.