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Originally Posted by vinuneuro
Not everyone is moving to SCR. Cummins, International, MAN and Scania are sticking with EGR for Euro 5 and EPA2010. Last I heard, CAT isn't doing any on-highway engines 2010 on forward.
Do the same emissions laws apply to off-road and stationary engines as on-highway?
Should be interesting to see how consumers react to SCR in the long-run.
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You are correct that Caterpillar is moving out of the on-highway engine business. It isn't just because of the increasing emissions rules though, it has more to do with the business model. As truck manufacturers develop their own engines, there are fewer choices in chassis for the Cat engines to be installed in.
We don't have the same emissions laws off-road as on-road, but still they are increasing every year. We will move to Tier 4 shortly. Marine engine emissions are another issue; there are different regulatory agencies depending on application.
I think SCR will become fairly commonplace. Most consumers won't think about it. Once it has been around for a few years, it will be reliable and invisible. The issue is that this year, introductory issues are a real concern. The basic BMW diesel engine is proven, but it is the electronics, add-ons, etc, that will cause potential issues. That will be compounded by the lack of trained diesel engine technicians in dealerships. Most diesel engine techs are used to older technology, in my experience.
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