I managed to get some of it out, but I can't get all of it. It looks like it is mixed with some trash bags and other stuff two. I just bought the truck, I love the truck and I want to take good care of it and keep it clean, but in order to do that I need to get it clean first. If there is anyone out there that can help me figure out a way to clean the bed of my truck without damaging my truck, I would really appreciate your help in this matter. Thank you for your help!!