Diesels and Urea

Lately I’ve been hearing about Blutech (sp?)…apparently injecting urea into the exhaust manifold cleans up the smell and particulates.


Aren’t diesel catalytic converters available and do a good enough job?

There are two main technologies in diesel cars and trucks. The urea method (urea solution is sold under the market name AdBlue in Europe)is called Selective Catalytic Reduction (SCR)

The other technology is called Exhaust gas recirculation (EGR).

I am not following this too closely, but both technologies have their pros and cons. At present Scania uses EGR in their trucks while most other mfgs. use SCR technology