Thanks so much, Robin, it truly is some amazing stuff! It seems that I seen a YouTube video a while back where it had a fellow which submerged car parts in a small pool filled with a mixture of molasses and water. The general idea was that the bacteria would consume all the rust, even in the most inaccessible nooks and crannies, which the video highly detailed, and it did so in just about a week of submerging. The stuff that I use, you can just simply paint it on with a brush or spray it inside the door panels or anything out of reach for that matter. And the best part is, you don't have to tear the whole car down and wait a week for it to work its magic. I was really surprised on how well it worked!