[Scott M.]

I'm a truck driver, been driving tractor-trailers for three yrs now and I've recently heard that DEF run vehicles are showing no proof of improved emissions and very well may stop being used in future diesel manufacturing

I would tend to agree. The system is way too complex for the benefits it returns. heated lines, pumps, injectors, sensors, ecu monitoring, tamper controls, removal of spare tire. all to make Al Gore feel better when he flies over America in his corporate jet chucking out 90,000 tons of carbon.

 

[Scott M.]

Yes, the NOx after the DEF injection is lower than the NOx before the injection. That's a fact of life. I just suspect that it's totally negligible and inconsequential to the world. One trip in Air Force One or one volcano erupting or one forest fire or maybe even a gassy bunch of cows in a pasture can wipe away all the NOx reductions achieved by DEF systems