Thanks for your hard work. I`m bummed Howe`s diesel treat wasn`t tested since I used it thru the winter and ran out last month. So I tried Howe`s meaner kleaner at their minimum treat ratio that was tested and it did not do so good, and this bottle will last till it gets cold. Looks like I`ll be using something else this winter, and also up the dose a bit till its gone. Hopefully the fuel we buy at the pumps is already close and my truck has benefited with the extra additive I have used since USLD has arrived.