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80% of your gas money goes out the tailpipe (slrpnk.net)

submitted 5 days ago* (last edited 5 days ago) by silence7@slrpnk.net to c/memes@slrpnk.net

33 comments fedilink hide all child comments

Key context: thermodynamics dictates that heat engines waste a lot of energy.

Credit: Karin Kirk

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[–] ShrimpCurler@lemmy.dbzer0.com 21 points 5 days ago (6 children)

I think the 80% number is outdated (although most of the energy is still wasted)

F1 engines achieve a peak thermal efficiency above 50 percent, significantly higher than a modern passenger car's 35 percent thermal efficiency - https://www.motor1.com/news/655596/video-how-f1-engines-make-1000hp/

So more like 65% goes out the tailpipe...

[–] SARGE@startrek.website 30 points 5 days ago (4 children)

I'll have you know 65% does not go out of my tail pipe.

It goes out a hole in the exhaust manifold that I'm too poor to patch up.

[–] clickyello@lemmy.world 2 points 5 days ago

oof. fuckin felt

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