So the big deal with the ULSD is lowering NOx emissions...or is it?? From my reasearch it looks as if big oil strikes again. Direct water injection has the same effects...or maybe better effects as ULSD for NOx emmisons plus higher HP. Here is a retro fit kit to meet new emissions for marine applications. http://www.wartsila.com/en,shippower...30680560,,.htm

The basics is that the EPA is just as crooked as any other government agency!! Something to ponder, once the new '07 motors come out it looks as if you can strip them down and put direct water injection on them and meet 2010 requirments. Wouldn't that be funny bombing a truck that meets future emissions?

 

ULSD doesn't lower NOx very much at all. It has more effect in lowering particulate matter (PM), hydrocarbons (HC) and carbon monoxide (CO).
It isn't until a particulate filters or oxidation catalysts are added that NOx drops significantly. One type of oxidation catalyst uses urea to regenerate the filter and goes a long way. I would venture to say using water injection would require hundreds of times more liquid than urea scrubbing.

The new particulate filters and oxidation catalysts are designed so that if they fail or aren't serviced regularly the engine's computer only allows the engine to reach a small percent of it's normal rpms. Basically just enough to get the vehicle off the road.

 

Thats even more ridiculous!

 

Don't like to sound as a know it all cause I don't know much Infadel, but it's CO2(Carbon Dioxide) emmisions they cut down on. Diesel produces very little if any Monoxide byproducts.

 

Streetsmoker, think you are confusing the fact that gas engines produce more carbon monoxide but much less soot than diesel engines.
Components of untreated diesel exhaust are in order of percentage:
carbon (soot);
nitrogen;
water;
carbon monoxide;
aldehydes;
nitrogen dioxide;
sulphur dioxide;
polycyclic aromatic hydrocarbons

Most of these are produced by burning anything, including cigarettes.