I use my truck for business and, it is my only 4-wheeled vehicle. The truck can't sit, and I am not buying a EV anytime soon, probably never! So, I have started stocking up on Blue DEF with the oncoming shortage of eurea (they did it with toilet paper, I'll do it with DEF!). I have seen posts that claim a 50/50 mixture of DEF and distilled water works, and does not create any issues. I'm wondering what everyone else is doing to prepare for the certain shortages and, skyrocketing prices that will come with it.