I used zep for maybe 5 yrs or more and liked the
soap. They would sell me 7 55g\drums and get one free. shipping was still getting expensive. I went to the powdered
soap of ecolab. I saved on shipping and the back, it seemed to wash ok. I then switched to blendco and was able to spend about the same as ecolab, but be able to clean alot better, went from a titration of about 13 to easy mid 20's with the blendco. We have a clay type soil that leaves a nasty road film, so every bit of help is needed for cleaning