I noticed mention of Diesel Exhaust Fluid in a Northern Tool catalog. Apparently, there’s a new emissions reduction technology that is being implemented that reduces diesel emmisions dramatically and improves fuel efficiency by 3%. It’s being deployed (mandated by the EPA?) in the US starting in 2010 light trucks and big rigs. Here’s a webinar description by Cummins about the technology. The webinar, and the couple other sources I found bandies about phrases like “near zero emissions” and “5% better fuel economy” “reducing NOx to near-zero levels”. It’s a bother to fill another fuel-related fluid, but the industry seems to be behind this.
Here’s a nearly worthless industry website about Selective Catalytic Reduction.