Technology

59421 readers

3645 users here now

This is a most excellent place for technology news and articles.

Our Rules

Follow the lemmy.world rules.
Only tech related content.
Be excellent to each another!
Mod approved content bots can post up to 10 articles per day.
Threads asking for personal tech support may be deleted.
Politics threads may be removed.
No memes allowed as posts, OK to post as comments.
Only approved bots from the list below, to ask if your bot can be added please contact us.
Check for duplicates before posting, duplicates may be removed

Approved Bots

founded 1 year ago

MODERATORS

[email protected]

1685

The average car purchased in 2023 emits higher levels of carbon dioxide (CO₂) than its 2013 equivalent. This is due to the large proportion of SUVs in the mix, which tend to be bigger and heavier. (english.elpais.com)

submitted 1 year ago by [email protected] to c/[email protected]

373 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 8 points 1 year ago (1 children)

Are you sure about that? I think possibly you're thinking of EGR (exhaust gas recirculation) which most engine manufactures used to handle the initial 2004 standards (which did not include particulate matter standards) but which is not really used any more. The main things used today are DPF (diesel particulate filter) and DEF (diesel exhaust fluid).

I'm not a diesel mechanic or anything, I just know what I know from owning a school bus (from 2003, yay!) and researching the emissions issues.

[–] [email protected] 1 points 1 year ago* (last edited 1 year ago)

Yes I am sure about that. When the diesel particulate filters clog up with soot, the ECU triggers post injection events so that extra diesel fuel will burn in the exhaust raising the temperature of the diesel particulate filter and burning the soot out. These events cause your miles per gallon to decrease significantly.