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But, they have all those blue and green emblems on the back. :/ When I see these cars getting floored and I see the dark grey/black smoke coming out I often wo
by dovdovdov 10y ago
But, they have all those blue and green emblems on the back. :/
When I see these cars getting floored and I see the dark grey/black smoke coming out I often wonder, this must be super healthy for all of us.
- Timethy 10y agoYouTube for Rolling Coal
- guscost 10y agoThe smoke/soot you can see is particulate matter, not NOx. That's only a problem with older diesels or if the owner removes the filter, modern diesels with intact DPFs emit way less particulate matter than an average gasoline car. The health problem with NOx (as I understand it) is that it will react with oxygen producing ozone and therefore smog, if there is enough in the air.
- fjrieiekd 10y agoEven new diesel trucks from Japan do this in places like the Caribbean. Maybe the standards are lower but I haven't seen a similar problem with new gas cars.
- guscost 10y agoThe US has way stricter new car auto emission standards than pretty much anywhere else, and I think lots of countries don't require DPFs at all, good point. If the US standards get much stricter there will have to be PM filters on gasoline cars too.