The truth about making homemade diesel exhaust fluid

I've seen a lot of people asking lately if they can just brew up some homemade diesel exhaust fluid in their garage to save a couple of bucks in the pump. It sounds simple enough in writing, doesn't it? You've got the modern diesel vehicle, the DEF lighting starts blinking upon the dash, and you see the cost of those azure jugs on the car parts store creeping up each and every month. It is extremely tempting to believe you are able to just blend some high-nitrogen fertilizer having a bit associated with water and call it a day. But before you proceed grabbing a container and a stirring stick, there is a whole lot you require to know regarding what actually goes into that fluid and, more significantly, what happens when points go sideways. ...

April 12, 2026 · 8 min · Goodis Jolinda