As long as the container has the ISO cert, it is DEF. To be certified as DEF it must contain 32.5% urea and 67.5% de-ionized water.Has anyone experimented with using different brands of DEF to see if consumption changes? I know in past years early DEF trucks had issues using certain brands of DEF. A friend had a lot of problems with his and the dealer told him to only run AC Delco brand def in his truck. Seemed like bs but he followed there recommendation and as far as I know he never had an issue again with it. I know my ford loved to burn through Blue DEF. I would normally fill up at the local truck stop with whatever they had at the pump and my consumption was noticeably lower compared to running Blue. Unfortunately I never logged it to see what the actual difference was.
Switching brands will not matter