It will give all manner of problems on those vans which don't get used regularly, the crystals WILL cause trouble with the metering as they seperate from the water. Also it doesn't like freezing temperatures.I agree,(even if it looks like i dont)
Ad blue quality varies though and the general crystalising issue can block some systems
Trucks have had it for 12 years and there are still some issues,but EGR is definately NOT the way , i agree
It remains to be seen on MoHo application and how the dealers/manufacturers pass the buck around if/when it goes wrong