this post was submitted on 21 Sep 2023
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[–] sorebuttfromsitting@sopuli.xyz 19 points 1 year ago* (last edited 1 year ago) (2 children)

weren't those volvo diesels better in many ways? or have i got it backwards? yay for the fossil fuel industry in confusing me, so fuck you shell.
ahem, fuck you: BP.

does anyone even know the names of these shits in order to condemn them

[–] positiveWHAT@lemmy.world 16 points 1 year ago (3 children)

Better in what ways? I think they are a bit more efficient, but emit more particulates.

[–] Rocha@lm.put.tf 27 points 1 year ago (1 children)

I believe that they emit less CO2 compared to gasoline powered cars, but a lot more nitrates, which are carcinogenic.

[–] tryptaminev@feddit.de 11 points 1 year ago

and acidic and eutrophic nutrients...

The efficency of diesel engines gets lowered when using proper particulare filters, catalysts and NOx resorption with uric acid. So at best the CO2 benefits are marginal.

[–] Player2@sopuli.xyz 2 points 1 year ago (1 children)

In Europe, diesel is usually cheaper and burns slower, so it saves money.

[–] Duamerthrax@lemmy.world 2 points 1 year ago (1 children)

"Burns slower"? Are you talking about the engine rpm or cetane value? Neither really has anything to do with cost per unit.

Generally diesels are more efficient and reliable to their gas counterparts and the better low end torque makes them better for hauling loads. Also better at engine breaking when combined with a manual transmission, so very suitable for mountainous European countries.

[–] Player2@sopuli.xyz 2 points 1 year ago (1 children)

I'm no scientist. A full tank tends to go farther on a diesel model than a gasoline one 🤷

[–] Duamerthrax@lemmy.world 3 points 1 year ago

There's more energy per unit in diesel compared to gas and compression ignition burns more efficiently then spark ignition.

yeah, that was my question.