Quote taken from EcoTune website :-Hang on a minute, why do diesels have cats fitted then? (Just out of interest :thumbsup)
Just to add to Xmak's post, eu compliance is at point of manufacture and isn't (yet) applicable/relevant to our UK MOT smoke test :thumbsupBecause the eu says diesel engines of x size should produce x emission or lower. Just silly rules and reg they dream up to give them something to talk about I think :confused
Basically yes, as I understand it, our sludgers get a simple smoke test at MOT whereas petrols have Hydrocarbons andSoooooo, the cat does infact reduce emissions but this is'nt required for the MOT?
All petrol cars manufactured after 1992 will have a cat fitted and it is nigh on impossible, especially with euro 4 and 5 regulations to pass an emissions test without one fitted.Soooooo, the cat does infact reduce emissions but this is'nt required for the MOT?