I have recently read about Rislone Diesel DEF Treatment. Not for the fuel, but for the DEF. It's supposed to eliminate and prevent the def crystallization and I can't find anything else like it on the market. Is this a currently unique product, what are your thoughts on it and does it work? There is a curative product and a maintenance product.
https://rislone.com/products/diesel-def-scr-emissions-system-cleaner/
https://rislone.com/products/diesel-def-treatment/
https://rislone.com/products/diesel-def-scr-emissions-system-cleaner/
https://rislone.com/products/diesel-def-treatment/