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submitted 2 months ago* (last edited 2 months ago) by LouNeko@lemmy.world to c/showerthoughts@lemmy.world

Imagine The Walking Dead started in 50 years from now. The way things are going now, picture this scenario:

>A survivor is walking down a lonesome road.
>They arive at a small resort and there's a car covered in dust and dirt in the parking lot.
>They approach the car and check whether it still has some bio fuel left in the tank.
>Still plenty.
>They look around spotting a decayed body close by.
>They search the body and are lucky to find a 'keyless' key belonging to the car.
>There are no door handles and the battery inside the key corroded away.
>They break the glass and open the door from the inside.
>Finally inside, there's still no way to start the engine without the key.
>They have an idea.
>The digital wrist watch on the body should have the same battery as the key.
>After a bit of tinkering with some tools they get the key working again.
>They press the ignition button.
>The displays light up but the engine remains quiet.
>The displays show error messages:

ERROR CODE: ND47089
Tire pressure sensor subscription expired
Please schuedule service or enter payment information
Engine start failed

>MFW

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[-] daniskarma@lemmy.dbzer0.com 57 points 2 months ago* (last edited 2 months ago)

Bikes are the apocalypse ideal vehicle. They are immensely underrated on apocalyptic media.

Fuel I need to constantly scavenger? No thanks.

Noise that would attract the zombies? No thanks.

The highway is collapsed and my RV cannot go through? No thanks.

A bike would get you quite good through many apocalyptic scenarios.

[-] LouNeko@lemmy.world 50 points 2 months ago

Or just use Heelys like a normal person.

[-] blueamigafan@lemmy.world 37 points 2 months ago

Omg just imagine the war boys from fury road gracefully gliding down the road screaming 'witness me' 😂

[-] Septimaeus@infosec.pub 6 points 2 months ago

Mad Max the musical now on Broadway

[-] dubyakay@lemmy.ca 6 points 2 months ago

Bikes have a limited lifespan in the sense that tires wear and degrade over time. Other parts can be replaced, repaired, welded. But tires will degrade within 2-5 years even when unused, depending on exposure to the elements.

Still much better than gasoline's fast degradation of 3-6 months of course.

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[-] Nougat@fedia.io 54 points 2 months ago

Bigger problem is going to be old fuel. Gasoline degrades over time and becomes less combustible. It also gets gummy in small passages like fuel injectors, especially with ethanol. Wiring insulation gets hard and breaks, wires corrode. Animals intrude and eat wires. Brake and fuel lines rust through, brake hoses swell shut from the inside.

You want a carbureted small block Chevy or Ford. It might still be effort to make it run, but it’ll be far more likely to scrounge up the very generic spare parts and supplies needed.

[-] empireOfLove2@lemmy.dbzer0.com 35 points 2 months ago

You want a carbureted small block Chevy or Ford.

Nope.

Pre 1990 mechanically fuel injected, naturally aspirated diesels. 7.3 or 6.9 IDI, 6.2 Detroit, most Cummins industrial engines.

Diesel lasts significantly longer in storage (2+ years) than volatile gasoline (6mo max). I've even seen some non-mixed diesel last 10+ years when stored right.
But the biggest deal is that compression ignition engines can basically run on literally any vaguely flammable liquid substance. You can make biodiesel from a ton of stuff ranging from oil bearing crops to animal fat. They run way longer on oil changes because they don't dump as much thin gas into their oil. And there are no real consumables like spark plugs, distributor caps/rotors/points.

In a post-society situation real fossil fuels or petroleum lubricants or parts will not be available.

[-] raltoid@lemmy.world 8 points 2 months ago* (last edited 2 months ago)

But the biggest deal is that compression ignition engines can basically run on literally any vaguely flammable liquid substance. You can make biodiesel from a ton of stuff ranging from oil bearing crops to animal fat

I'm always annoyed that you don't see more wood spirit(aka methanol) in the post-apocalypse. They'll make en ethanol still and then complain about a lack of fuel for their diesel generator as they're standing next to a forest.

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[-] Nougat@fedia.io 5 points 2 months ago

Yeah diesels are always going to be first choice, but in the US at least, there's just not very many of them that aren't semi trucks.

[-] empireOfLove2@lemmy.dbzer0.com 5 points 2 months ago

You'd be surprised. They're less common in urban areas, but you can find multiple in any parking lot in more rural areas.

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[-] Rhaedas@fedia.io 12 points 2 months ago

Diesel. Still same problems, but diesel will burn a lot more fuel sources, some that can be made far easier than gasoline.

[-] Nougat@fedia.io 7 points 2 months ago

Oh yes, and an old diesel with mechanical injection will be best.

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[-] ChickenLadyLovesLife@lemmy.world 5 points 2 months ago

Tires are another problem. One thing that makes me laugh about the recent Mad Max movies is that all the vehicles have brand-new knobby tires (IIRC the original Mad Max had a lot of properly fucked-up old tires). Since those movies are mostly practical effects, they needed good tires for safety but it's totally unrealistic for a post-apocalyptic world. In reality they'd use old tires until they exploded - like most of the world today.

Refining gasoline is unlikely enough in these scenarios, but they'd have no way of sourcing the rubber for new tires, let alone the capacity to manufacture them.

[-] Embargo@lemm.ee 4 points 2 months ago
[-] Nougat@fedia.io 6 points 2 months ago
[-] Embargo@lemm.ee 4 points 2 months ago* (last edited 2 months ago)

Sorry. It's a reference to last man on earth and I couldn't help myself.

[-] Nougat@fedia.io 6 points 2 months ago

Man I miss that show, sorry I didn't get the reference. It got killed off right in the middle of "shit's about to go down," and I will never forgive whoever made that decision.

[-] slaneesh_is_right@lemmy.org 37 points 2 months ago

What i learned from doomsday preppers is that you need guns and food and shelter. Apparently it doesn't matter that you're an unfit fuck that can't walk 20m without a car.

[-] ChickenLadyLovesLife@lemmy.world 12 points 2 months ago

Or that you wouldn't last a year without your statin.

[-] JackGreenEarth@lemm.ee 4 points 2 months ago

Food (or a way of getting it), same for water and medicine. Some form of shelter is good, but not the utmost priority, and a simply tree or something to sleep under can be good enough. I wouldn't immediately go for guns, as there are usually nonviolent solutions to conflict and bringing in a gun only raises the stakes and makes it more likely for people to get hurt.

The knowledge you know in you mind has the potential to be just as valuable, if not more so, as physical items you have. Knowledge on how to catch food, and build shelter, can be more useful that simply owning some cans and a basement.

[-] reddig33@lemmy.world 36 points 2 months ago

I think modern apocalypse movies should show someone grabbing solar panels off apartment balconies to recharge an abandoned electric car.

[-] spankmonkey@lemmy.world 21 points 2 months ago* (last edited 2 months ago)

Not even close to enough energy to be practical in the real world, but close enough for movie logic.

[-] reddig33@lemmy.world 12 points 2 months ago* (last edited 2 months ago)

Electric vehicles can charge from a standard outlet. I would imagine if you gather enough of those panels that actually plug into a standard outlet, you could charge a car (though slowly). Your average EV can put on about 10 miles to its “tank” every hour of charging at 120 volts. I don’t know what the amps of those panels are though.

The alternative would be if the protagonist found a home with solar panels and backup batteries. These exist today, and are becoming more common. I don’t know if sodium ion backup batteries have a longer life than LFP or lithium ion.

[-] Gradually_Adjusting@lemmy.world 10 points 2 months ago* (last edited 2 months ago)

In a real apocalypse scenario, those BEVs would get scavenged to create electric ~~bikes~~ generators, grain mills, and water pumps. The original cars are not useful in a world without deliberately car-dependent economic systems, and it's just not a proper apocalypse if you've still got an automotive lobby.

Edit: BEV motors 2 big 4 bike

[-] dragonfucker@lemmy.nz 4 points 2 months ago

it's just not a proper apocalypse if you've still got an automotive lobby.

Mad Max

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[-] TranquilTurbulence@lemmy.zip 9 points 2 months ago

How about pulling the batteries from a remote control and using them to start an electric car? After all, it’s electricity and we all know batteries don’t go bad after sitting idle for 10 years, right? Movie logic. It just works.

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[-] DicJacobus@lemmy.world 23 points 2 months ago

this is like, totally out of left field.

but if you want to live out the whole apocalypse scavenger, doomsday prepper fantasy. Project Zomboid and its mods are a great game for that.

[-] dubyakay@lemmy.ca 8 points 2 months ago

PZ is set in 1993 though. And for some reason their 1993 does not have bicycles.

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[-] ArcaneSlime@lemmy.dbzer0.com 18 points 2 months ago* (last edited 2 months ago)

>Survivor finds car

>plenty fuel

>pry open gas cap

>siphon

>go back home and run generator.

[-] needanke@feddit.org 14 points 2 months ago* (last edited 2 months ago)
[-] ArcaneSlime@lemmy.dbzer0.com 5 points 2 months ago* (last edited 2 months ago)
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[-] LouNeko@lemmy.world 4 points 2 months ago

I knew hauling around a random jerrycan would pay of some day
shit, this thing is heavy when it's full

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[-] Ilovethebomb@lemm.ee 14 points 2 months ago

They'll be dragging classic cars out of people's garages and sheds.

If you were going to be realistic about this, it would be old, mechanical injection diesel engines still going long after the apocalypse. And bicycles, of course.

[-] kameecoding@lemmy.world 11 points 2 months ago* (last edited 2 months ago)

If you are being realistic, your best shot is probably EVs and having solar panels, those can maybe last about 20 years.

Diesel and Petrol will go bad in a year.

Either way you are on a finite resource, so the actual best bet is having horses

[-] Duamerthrax@lemmy.world 5 points 2 months ago

Diesel lasts longer then a year. If you can get a commune going, you can grow diesel fuel from seed oil, but only with older diesel. Not that you'd want to direct too much food resources to transportation, but if you have enough farm land, diesel tractors are much more common then electric and easier to work on.

You can also run modified gas engines to run off of Wood Gas and wood could be scavenged from most places. Probably the best option for any fast scouting operations, although you would need to let the system idle. The start up process takes some time.

[-] ChaoticNeutralCzech@feddit.org 4 points 2 months ago

Can confirm, my dad still uses the same tractor and diesel barrels his grandpa did. They are all from the 70s.

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[-] Ilovethebomb@lemm.ee 4 points 2 months ago

I'd bet on an old diesel running on vegetable oil outlasting an EV.

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[-] einlander@lemmy.world 13 points 2 months ago* (last edited 2 months ago)

Keyless start using too much an issue. You can start card with dead key transponders. This new phenomenon of subscription will be an issue though.

Imagine dragging a Stellantis vehicle and using the satnav. You stop at an intersection to get your bearings and the screen same you to extend your warranty.

https://www.theautopian.com/jeep-says-the-repeated-full-screen-pop-up-ads-are-a-glitch-and-not-just-a-nightmare/

[-] AmidFuror@fedia.io 11 points 2 months ago

It still amazes me the number of people who think if the battery in their key dies they cannot get into or start their car. It will probably get to be that way some day because people don't demand more from automakers. But right now these fobs include physical keys for the door. Read the manual how to get to the key and lock before you're locked out of the vehicle.

You can also put the dead key by the start button or some other designated place in the car to start it with RFID.

These are the kinds of things you want to have figured out in the first few days of car ownership. See also how to open your Tesla from the inside when the battery is dead. That's a life or death situation in some circumstances.

[-] JohnnyCanuck@lemmy.ca 4 points 2 months ago

You can also put the dead key by the start button or some other designated place in the car to start it with RFID.

Yeah I've had mixed success with that on my Honda. I keep spare keyfob batteries around now.

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[-] pedz@lemmy.ca 10 points 2 months ago

Even right now. Look at how people have to wait in huge lines to get some gas every time there is a natural disaster, or extreme weather. After a few days, or even hours, it's mostly gone.

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[-] misterdoctor@lemmy.world 10 points 2 months ago

This was a thrill ride to read high wow

[-] toy_boat_toy_boat@lemmy.world 6 points 2 months ago* (last edited 2 months ago)

well-written, too. this would make a great short film.

edit - i just remembered my favourite quote from Spaceballs: "Fuck! Even in the future nothing works!"

[-] EtherWhack@lemmy.world 8 points 2 months ago

Aside from the battery in the keyfob, what about the car's battery? If left connected most cars would drain theirs within a month or two. Also, if left discharging/ed like that for too long, the cells can start to sulphate, leading to a bad/non-working cell.

[-] dexa_scantron@lemmy.world 4 points 2 months ago

They did a good job covering that in The Last of Us (season one, episode...4 or 5?): 20ish years post-apocalypse, someone very prepared has kept battery cells in a refrigerator (in acid maybe?) and they have to rebuild the battery before they can use the car, but the battery works.

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[-] michaelmrose@lemmy.world 5 points 2 months ago

I feel like any apocalypse is going to see lots of people try to rush to or from somewhere leading to clogged roads that make cars virtually useless until one gets way way into the boondocks.

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this post was submitted on 29 Apr 2025
341 points (97.2% liked)

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