Hello Moose,
Maybe you need to go back and read the actual press release. It's a 5% reduction across the boards on emissions. .3% increase in fuel econony.
This on test on a brand new engine is indeed good news. A 5% reduction of all emissions in one of the most efficient diesel engines.
Once again, try it on an older vehicle. Should produce even better results. Just my guess though, as I am not as smart as all the naysayers on the board. I can't spell or add very well. Ask Tauchwaab, I scare him!
Act in Spite of Fear and Uncertainty
Blockman