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It looks like Honda won't be the only Japanese manufacturer producing new clean diesel engines that don't require urea injection to meet Tier II Bin 5 emission standards here in the US. Honda announced the new catalyst technology that they've developed last fall and now Nissan has devised a system of their own.

Nissan has created new catalyst that includes multiple layers. The first layer traps hydrocarbons which react with the catalyst material to produce hydrogen and carbon monoxide. The next stage of the unit causes the H2 and CO to react with the NOx to convert it to nitrogen, carbon dioxide and water. Nissan already announced plans to introduce a diesel version of the Maxima to the US market in 2010 and this could be the technology that makes it fifty state legal.

[Source: Nissan]


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    • 1 Second Ago
  • 5 Comments
      • 7 Years Ago
      This would be fantastic. Right now, even the cleanest Diesels are just trying to make tier 2, bin 5 emissions (ULEV II). This would emit 40% as much NOx, which would be very welcome.
      • 7 Years Ago
      Blog post says Nissan plans to "introduce" a Maxima with a diesel powerplant. Don't you mean reintroduce??

      Seems I recall a diesel RWD Maxima in the early or mid eighties. -SpinDaddy
      • 7 Years Ago
      Correct me if I am wrong, I thought the engine (maybe another component) of the Maxima was being developed by Renault.
      • 7 Years Ago
      #1: The I6 Diesel? I do not know if it's name was Maxima. A friend of mine had one. She also had one of those Sunny Diesel box vans. But I definitively preferred the RWD battleship.
      • 7 Years Ago
      More diesels the better for the U.S.

      Too bad it will take them until 2010 to get here.