Author Topic: The Garage  (Read 66418 times)

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Offline imref

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Re: The Garage
« Reply #250: January 07, 2016, 11:46:29 AM »
I don't know the engine rules, but I'm guessing the urea is for an emission control device like some sort of catalyst.  That's how you lower nitrogen oxides.  You used to not be able to use catalysts on diesels because the sulfur would poison the catalyst, but with the new ultra-low sulfur diesel fuel, you can run a catalyst to scrub emissions.

urea mixes with the diesel exhaust to clean it.  See: https://en.wikipedia.org/wiki/Diesel_exhaust_fluid