“The best way to describe the difference between our Diesel Extreme and Everyday Diesel Treatment [EDT] fuel additives is simple. I like to use the analogy of going to the dentist. Think of it in this way: To treat your truck with our Diesel Extreme formula is like taking your engine for a cleaning at the dentist. It’s an intense cleaning that is needed twice a year to get rid of any stiction build up (plaque) in your tank, lines, and injector tips. We would hurt our mouths if we were to go to the dentist for a cleaning everyday; it is also true when cleaning your engine with our Diesel Extreme product. Our Everyday Diesel Treatment [EDT]formula is also a very strong cleaning treatment, however it is better suited for an everyday use; just as we take care of our teeth by brushing them everyday, it is also good to treat your fuel tank with EDT daily. Both products are concentrated cleaners. Diesel Extreme is a concentrated detergent recommended on a SEMI ANNUAL basis (going to the dentist). Everyday Diesel Treatment [EDT] is a concentrated power booster recommended on a DAILY basis (brushing your teeth).”