Howe’s products... I’ll use the diesel treat for the winter and am now using diesel defender in the spring/summer/fall. DD supposed to provide min 5% increase in fuel economy, who knows for sure. Use it for the water remover and lubricity for the injection pump. They also have a product call mean klean, I believe that has some cetane in it. Can combine as well without causing issues according to Howe’s. My uncle used to be a long haul big rig driver and told me about it.
Edit: My mistake, they say their meaner power kleaner does not contain harmful cetane. I haven’t use this one. It’s more of a stabilizer, cleaner and water remover. None of Howe’s products have alcohol in them (ie: for water removal).