Hobby55
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No, they're not. Petrols don't have issues with NOx for example, and some
(affordable) cars already do meet Euro 6c, even without particulate filters.
They don't have as bigger issues with NOx, granted, but DI Petrol engines will need a particulate trap like diesels to meet future (no doubt more stringent) emissions regulations as they can produce as many particulates as diesels, and of course there is CO2 which they produce in larger quantities...
https://www.sciencedaily.com/releases/2017/05/170523144338.htm
The issue is not just confined to diesel engines as that research shows. At some point the question of older (pre Euro5 or 6) cars will have to addressed, in the short term i suspect a ban in city centres like Germany does with their Umwelt Zones may be the way forward.
https://www.umwelt-plakette.de/en/i...es-in-germany/german-environmental-zones.html
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