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As per my previous point, the focus 3 cylinder was the only 1.0 ecoboost engine tested therefore you cannot make any qualified assessment of the suitability of that engine for a particular vehicle.
In fact only three Fords are tested in the entire 400 cars so Ford are poorly represented. There are a very significant number of VAG cars tested which all seem to do ok... as Ford is the best seller in the UK, testing only three cars is extremely suspicious.
The organisation which makes these claims does not have a specified test method published so there is no clear standard they follow in testing to demonstrate how 'real world' it is.
The Ford engine makes a significiant amount of power per litre therefore is more likely to produce NOx since this is a byproduct of high combustion temperatures.
My point is that while the engine may have be demonstrated to produce high NOx in an undefined test, there isn't a single bit of evidence to suggest this relates to it being installed in the Focus. It may be the ecoboost is simply a high NOx engine whatever it is installed in.
Given there is no data for any other Ford petrol engine in the database, you cannot make any valid assumptions on this data set.
This is simply a 'non' organisation looked of 15 minutes of fame.
Edited by Decto on 23/04/2016 at 00:23
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