this post was submitted on 02 Apr 2026
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ShowerThoughts

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Sometimes we have those little epiphanies in the shower.. sometimes they come from other places. This is a home for those epiphanies.

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backstory is that i try to fill up my tank more when gas prices are at a low and less as prices go up to make my long term average cost per gallon lower.

now given current events, and empirical reality, gas has only been going up and will continue to go up. we could assume different curves(only constraint being that price per gallon goes up as time goes forward), but if you buy your gas now you will spend less money then you have if you bought it tomorrow, day after, or week down the road. my estimate is that it will be month minimum before it gets cheaper.

now that I have put this out there into the world you should fill up asap, I already filled up before making this post and other people will come up with this idea independently of me.

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[–] Rhaedas@fedia.io 13 points 1 week ago (2 children)

Instead of playing the game of maximizing the cost, reduce the usage. That will have a much larger effect than trying to gain a few cents as prices increase over time.

My dad was born in 1943 and would tell us a story about the corner gas station where the price had always been a fixed 29 cents a gallon since he could remember. At some point, as a kid, he noticed when it went up to 30 cents and realized it would never go back down. What caused the increase, who knows, but it's funny to plug in 28-30 cents into an inflation calculator and find it's the same as $4.00 in today's dollars.

You know what was different, though? Wages. While we do need to use less oil for lots of reasons, including cost, resources, and environment, that isn't why gas prices are a problem.

[–] Bluescluestoothpaste@sh.itjust.works 2 points 1 week ago* (last edited 1 week ago) (2 children)

Nobody is out there driving for fun man, not anymore and in this economy. There's not much we can do to drive less because we already only drive when we have to. Yes we drive a lot but we have to go to work, we have to go to the doctor we have to go to groceries. Honestly im sick of driving nothing better than a sunday when i dont have to get in yhe car but the reality is i have to drive almost every day unless i want to go live in my car. Sort of a catch22.

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[–] HubertManne@piefed.social 9 points 1 week ago (7 children)

I don't follow this logic. How long does your tank last. You will always need to fill the tank in the future. Going electric is the only thing people can do to mitigate the gas prices.

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[–] rumschlumpel@feddit.org 8 points 1 week ago* (last edited 1 week ago) (2 children)

Can only do so much with one tank, though. IDK how smart it would be to keep a tank or barrel of fuel in your garage ...

I've considered similar with food, but most of the food I eat is either perishable or has low value per volume, and I have limited storage space. I did stock up on cheese, though.

[–] solidheron@sh.itjust.works 3 points 1 week ago (1 children)

yeah i was thinking about getting jerry cans out to the station but i think it would only be another car tank worth at most to hold out for oil crisis to come down, for that that little i probably should but idk at what volume you should stop at.

foods probably gonna be the same situation because sulfur from oil wells somehow intertwined itself chicken husbandry.

[–] FrederikNJS@piefed.zip 6 points 1 week ago (4 children)

Just remember that fuel doesn't have a very long shelf life. I've heard people mention numbers between 3 and 6 months. Apparently there are additives that can be added to the fuel to keep it stable for longer.

That only matters if you don't cycle your fuel around - you fill your fuel tank from the jerrycans, not the petrol station.

[–] rumschlumpel@feddit.org 1 points 1 week ago* (last edited 1 week ago) (2 children)

What happens with old fuel after 3-6 months? People with oil heaters often keep their diesel around for >1 year ...

[–] Ledivin@lemmy.world 6 points 1 week ago* (last edited 1 week ago)

Diesel has roughly ~double the shelf life as "normal" gas, so 6-12mo instead of 3-6. It doesn't just immediately go bad, but loses its energy slowly and burns less cleanly, so it could cause engine issues, but that's not super likely unless you've been storing it for a looong time.

[–] SARGE@startrek.website 4 points 1 week ago (1 children)

I own a regular gasoline truck. It once spent over a year sitting in a driveway with no battery or driveshaft, and a half filled tank of gas.

After putting in a new battery and drive shaft, I didn't remember how much gas was in it anymore, so I took my 2gal can and put abiut half in to get it started.

No issues starting beyond the usual no gas primed in the line or fuel rail, so it took a second, and I drove it for about 50 miles before stopping at a gas station.

I have also never once swapped the gas in my mower after letting it sit all winter.

I understand that gas degrades, I just have never had gas that sat long enough to go bad I guess? I don't think 1 gallon of gas would "fix" 15 gallons of bad gas...

[–] Brkdncr@lemmy.world 2 points 1 week ago (1 children)

Lawn mower engines operate on nearly anything though.

Same with old vehicles, although newer gas with ethanol eats up the rubber.

[–] SARGE@startrek.website 1 points 1 week ago

There's a guy on YouTube who makes videos of running a mower engine on various things, and holy shit I'm surprised nobody has gotten a mower to run on pure grass yet..

It's a 90s truck, and the newest vehicle I've ever let sit that long is from the mid-00s.

Guess I've just been lucky with how my gas has gone bad?

[–] whats_a_lemmy@midwest.social 1 points 1 week ago

Fuel stabilizers like Sta-Bil will keep ethanol-containing gas usable for a while longer

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[–] jode@pawb.social 1 points 1 week ago (1 children)

Gas goes bad after a while. Especially if it's full of ethanol.

[–] rumschlumpel@feddit.org 1 points 1 week ago* (last edited 1 week ago) (1 children)

Does gas station gasoline usually have a lot of ethanol ...? And what does "goes bad" even mean for an oil-based product?

[–] jode@pawb.social 1 points 1 week ago

Depends on the state but usually yes. Gas station gas has all sorts of different things in it that turn to "varnish" if left to sit. Also the ethanol is hygroscopic meaning it absorbs water from the atmosphere.

[–] hitmyspot@aussie.zone 7 points 1 week ago (2 children)

If everyone does that, the shortage hits harder as more is going unused, being hoarded. So the price goes up more.

Drive less. Consume less. Reduce demand, not increase it.

[–] solidheron@sh.itjust.works 1 points 1 week ago (1 children)

well faster, shortage is kind of already here rolling in slowly, my suggestion will speed it up. but its game theory at this point do you A) take my advice get the cheaper gas and accelerate gas prices or B) maintain status quo and presumable pay more for gas then you would and hope no one else takes my advice just so gas prices increase at the steady rate they are. you have to keep in mind I told other people and percentage of them are going to take A.

yes we should drive and consume less regardless of the trumps illegal war with Iran, but its just mathematics at this point to buy gas as soon and as often as possible.

Gas prices going up faster is kinda the means I used to justify my ends of putting a crunch on trump and making him look bad

[–] hitmyspot@aussie.zone 2 points 1 week ago (8 children)

If it was just game theory, telling people is not the way to keep prices down for you personally. So you clearly already have the sense of community that might benefit from doing what is in collective interest rather than individual interest.

Paying more for a resource to own Trump is no better than maga hoping bad decisions hurt the right people and cause liberal tears.

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[–] SaveTheTuaHawk@lemmy.ca 1 points 1 week ago

Consume less? That's unAmerican. You mean get two more credit cards maxed out.

[–] reddig33@lemmy.world 6 points 1 week ago (1 children)

This seems to happen every four years. Someone starts a war in the Middle East, and gas prices go up. People have a short memory. Gas prices will go back down, probably after the midterms if sanity returns. And then everyone will run out and buy a new gas guzzling SUV again.

Meanwhile, used EVs are very competitively priced. 🤷‍♂️

[–] solidheron@sh.itjust.works 1 points 1 week ago

Lol they say Time a flat circle but I expect it to period to be more than 4 years. Lol

I really remember gas prices going up under push after Iraq, post covid vaccine, and now. Maybe Obama had little bumps in gas prices? I know Obama did drone strikes in middle east.

Yeah EVs are gonna take the fuck off real soon because this is actually an oil shortage similar to the Carter administration.

[–] SaveTheTuaHawk@lemmy.ca 3 points 1 week ago (2 children)

But for God sake, don't buy a slightly smaller more fuel efficient vehicle.

You morons go through this every 4-5 years and as soon as gas prices go back down you're back to the V8 Cayoneros.

[–] piccolo@sh.itjust.works 1 points 1 week ago* (last edited 1 week ago)

Speak for yourself. My car is 10 years old. And its an i4 turbo.

[–] solidheron@sh.itjust.works 1 points 1 week ago (8 children)

Okay you get a smaller car and your going to wait to buy gas when it's more expensive?

You didn't address a single thing I said

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[–] Assassassin@lemmy.dbzer0.com 3 points 1 week ago (1 children)

But then you're keeping your tank full, which is extra weight, which requires more fuel burn. To properly optimize, you should be calculating your exact fuel burn to get to your next destination and only put that much into your vehicle to avoid the extra weight. Lose all of the extra shit too, you only really need the steering wheel, gas, brakes, lights, engine, a couple of mirrors, the driver's seat, and a window to be street legal.

[–] solidheron@sh.itjust.works 2 points 1 week ago (1 children)

Now that's more reason to get jerry cans/storage tanks for the garage. Ironically the optimal amount would be close to empty tank in terms of fuel efficiency.

Running your tank below half constantly isn't always the best idea though as your fuel pump needs to be sitting in the fuel to cool itself. If the tank is run close to empty it isn't in the fuel bath anymore, it sits above it.

[–] Bluescluestoothpaste@sh.itjust.works 2 points 1 week ago (1 children)

It goes up and down it'll come back down at some point when the recession gets worse lol.

[–] solidheron@sh.itjust.works 2 points 1 week ago

Collapsing the economy would do that

[–] mech@feddit.org 1 points 1 week ago

Sorry, can't do.
I don't own anything with a gas tank to fill up.

[–] brygphilomena@lemmy.dbzer0.com 1 points 1 week ago (1 children)

I could replace my 2 seater with a motorcycle and go through like 2 gallons a years.

I just can't take my stepdaughter to school on it. As it stands, I go through 2 or 3 tanks a year on the car I have.

[–] solidheron@sh.itjust.works 1 points 1 week ago

I see people take their kids on ebikes but they could be fairly close to the school

[–] JennaR8r@lemmy.dbzer0.com 1 points 1 week ago* (last edited 1 week ago) (2 children)

Yeah I really regret a couple weeks ago I didn't fill up when the prices were at $6.10, which was ridiculously high already. I kept waiting for prices to go down but my tank was nearing empty, now the prices are nearly $8/gallon. I had to fill up. 😭

It cost $115 to fill my tank 6/10.

[–] solidheron@sh.itjust.works 1 points 1 week ago

well if your gonna use your entire tank in the next month id fill up today. i cant determine how valuable your destinations are.

[–] Noobnarski@lemmy.world 1 points 1 week ago

I wish I could fill up that cheap, here in Germany it is over 2,4€ per liter, which is $10 per gallon.

I guess I'll bike more.

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