Quote:
Originally Posted by JSH
That was then - Euro 6 is now. Today the EU only allows 0.08 g/km NOx
The fix for NOx is pretty easy - inject more and more DEF. VW was the only manufacturer not using SCR on their diesel vehicles in the US - which should have been a red flag for regulators. VW didn't add SCR to their 2.0 TDI until 2015.
Mercedes and BMW were using SCR on all of their US diesels from 2009.
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But now diesels are dead in the USA because of previous rules that IMO were there to purposely kill them. Plus all these new rules make the latest diesels crap in comparison to the 2000s versions. What is the best EPA rating for a new diesel sold in 2021 compared to say 2006? I'll give you a hint, terrible because the only new diesels today are in pickups and SUVs. Even considering the last of the cars around 2019 they were worse and worse every year while their gas counterparts were better economy wise year after year. US emission laws as pointed out in that article weren't about conserving resources and making less co2 it was about local smog which in 98% of the country isn't a problem. Just ban them in LA and let the test of the country enjoy the durability and economy of a modern, non-choked to death diesel.