HackerTube.dev

Is Keeping Your Old Car Better For The Environment?

Engineering Explained · 306.1K views · 2021-09-17 · 13:27

Open on YouTube ↗

If playback is restricted in your region, try opening the original video. Use Mark watched to add it to your marked videos.

Overview

Engineering Explained compares the lifecycle emissions of keeping an old car with those of buying a new, more efficient one. It weighs manufacturing emissions against emissions from driving, and covers gas versus electric cars.

On Hacker News

HN commenters cite it in EV and emissions debates for its numbers on when replacing a car pays off.

Recommended by 2 HN people across 2 months · HN mentions 2021–2025

Topics

Search by tags

What people said

widdershins · 2021-10 · Recommendation

A video I watched recently comes to a very different conclusion on almost every point you raised: that buying a new electric car is better for the environment within ~5 years of use, taking into account the 'new car' footprint. I'm not an expert, so I won't claim to know who's correct. But the linked video provides lots of numbers, and you didn't, so I lean in favour of that conclusion. [VIDEO]

Read the original HN comment ↗
farisjarrah · 2021-09 · Recommendation

Engineering Explained youtube channel tackled this question: [VIDEO] The verdict appears to be that the answer to this question is a bit more complicated then a blanket "Its better to buy a new car for the environment" but its highly dependent on gas milage and time of ownership, as well as new gas car vs new hybrid car vs new electric car. He does take into account carbon needed to build the cars too. It seems that in most cases a new EV will be better for the environment then your 10 year old honda in roughly 4 years. Skip to 6 minutes in the video for when he starts showing compiled data of when its better to buy a new car vs keep old.

Read the original HN comment ↗
cycomanic · 2025-08 · Reference

> From an environmental perspective, I bet I could drive that truck for the rest of my natural life before I consumed more resources or exhausted more pollutants than would be required to manufacture a new one. Unless you drive much less than the avarage this is not true, engineering explained [1] did a video about this, and comparing a 24 MPG to a 35 MPG car you produce more CO2 with the 24 MPG car compared to a new 35 MPG car (including the manufacturing) considering your GMC has much worse fuel efficiency that break even point would be much earlier. This is not even considering the impact of recycling... So the best thing for the environment you could do is buy a new more fuel efficient car. [1] [VIDEO]

Read the original HN comment ↗

Sources

Video by Engineering Explained, played through YouTube.

Data and selection notes

HN summaries and labels may contain AI errors. HN dates refer to discussions, not video publication.

HN Library: HackerTube export (2026-10-31) and open-index/hacker-news. Upstream summaries and classifications may contain AI errors.

Views, duration and playback status refresh separately from the published catalog. When an update fails, existing data remains visible.

Selection checks
  • SaaS & AI candidates: Topic keywords do not match
  • Editor-approved picks: Editorial review is required

Rule matches identify candidates. They do not guarantee video quality or financial results.

About the library and its sources