I have searched and read the threads ref Water Wetter and have not found an answer. In the description of Diesel Water Wetter it says " without the rust and corrosion inhibitors". I would like to try WW but I can't find the Diesel version in my area. Besides the inhibitors is there a big difference between the two. I am considering taking my '85 300D-T, 215K on a long road trip and think it would be beneficial. Any recommendation from WW users? Thanks in advance, C3!