Urea and long haul trucks...

Just an observation. I went on a road trip for the last two weekends and couldn't help but notice the large number of rigs which had the SCR (Urea) emissions systems. I even noticed some Peterbuilt (moving van size) trucks had them. Thought it was a welcome surprise.

I just took a long road trip out to Denver and back.Many,many miles in I-70 and I-80.At several of the pit stops I made I saw those DEF pumps that are designed for trucks rather than cars.Pretty cheap,too...compared to the prices I've seen at Autozone,etc.

I've seen transit buses with them too. Pretty cool.

It makes all the sense in the world to be able to fill at a normal truck stop. Parts stores are only open fixed hours and as we know trucks run 24/7. Make it always available and the problems will be minimized. I wonder if the fill rate is slow enough for a passenger vehicle to fill too (if you're in a pinch).