DieselBound
Elite Member
To those confusing DEF and "pre-emissions"... We've had "emissions" stuff for MANY decades. DEF has been around for less than two decades: not sure exact date Mercedes came up with it. My tractor is Tier IV but it doesn't use DEF. DEF isn't a requirement for anyone. DEF systems just make it easier to hit the emissions standards: costs manufacturers patent rights [from Mercedes] to use it.
DEF comes in big barrels. I'd look to have a barrel, if I had equipment that needed it, just like I look to have a tank full of diesel. Will admit, however, that I have no idea on storage and shelf life, so maybe not an option...
The "lesson," as uncomfortable as it is, is that the JIT (Just In Time) system is starting to break down: Toyota learned the lesson with Fukushima- they relaxed on their pure JIT scheme to allow for critical parts to be stocked up. I foresaw all this many years ago: just took longer to [d]evolve than I figured.
BTW - I've got "mechanical" injection pumps on my VW TDIs, which have no DEF or DPF; but, they DO have EGR valves and coolers (both are fairly trivial and, for the most part, trouble-free [if your operate the cars like they should]). These cars use computers, simple ones: zero issues with mine at 225k miles and 21 years; wife's is only 18 years old and only 205k miles, so it's not as proven. My truck is ALL mechanical (only a pre-heater): 12V 5.9L Cummins; stinks and is dirty, but it's not used a lot (at the rate its used it'll last 2,000 years).
DEF comes in big barrels. I'd look to have a barrel, if I had equipment that needed it, just like I look to have a tank full of diesel. Will admit, however, that I have no idea on storage and shelf life, so maybe not an option...
The "lesson," as uncomfortable as it is, is that the JIT (Just In Time) system is starting to break down: Toyota learned the lesson with Fukushima- they relaxed on their pure JIT scheme to allow for critical parts to be stocked up. I foresaw all this many years ago: just took longer to [d]evolve than I figured.
BTW - I've got "mechanical" injection pumps on my VW TDIs, which have no DEF or DPF; but, they DO have EGR valves and coolers (both are fairly trivial and, for the most part, trouble-free [if your operate the cars like they should]). These cars use computers, simple ones: zero issues with mine at 225k miles and 21 years; wife's is only 18 years old and only 205k miles, so it's not as proven. My truck is ALL mechanical (only a pre-heater): 12V 5.9L Cummins; stinks and is dirty, but it's not used a lot (at the rate its used it'll last 2,000 years).
