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A comment on Oregon Finally Legalizes Pumping Your Own Gas After 72 Years. Parent comment

Re:Oregon Finally Legalizes Pumping Your Own Gas After 72 Years by lotsofpulp on Monday June 26, 2023 @04:04PM (#36485079)
Is there data on this? I have never heard of this happening and I imagine there are millions of gas pumping events per day (or at least hundreds of thousands) where a person sets the nozzle, sits in the car, then comes back out.

Compared to all the other risks of cars and gasoline, the relative risk seems miniscule.

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Re:Oregon Finally Legalizes Pumping Your Own Gas After 72 Years by ordersofmag on Monday June 26, 2023 @04:34PM (#36485458)
from back in 2008 "the Petroleum Equipment Institute, a trade group, found that there were at least 170 static electricity fires at gas stations from 1992 to 2006. Considering that the American Petroleum Institute estimates that there are 11 billion refuelings in the United States a year, the problem probably isn’t a big one." from https://www.nytimes.com/2008/07/27/automobiles/27STATIC.html

I'll note that in the state I live (MN) it's technically illegal to get back in your car while pumping (you have to be " in close attendance to the dispenser nozzle").

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Re:Oregon Finally Legalizes Pumping Your Own Gas After 72 Years by Arrath on Monday June 26, 2023 @04:35PM (#36485473)
I know for certain I've discharged static electricity by touching metal of my car after getting in/out, or cleaning out trash, etc while the pump runs.

Would that little spark be enough to ignite the vapors? I have no earthly idea.

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Re:Oregon Finally Legalizes Pumping Your Own Gas After 72 Years by Eisenstein on Monday June 26, 2023 @05:50PM (#36486352)
> Would that little spark be enough to ignite the vapors?

Yes.

> Gasoline...has a flashpoint of minus 43°C. Sparks and static electricity can easily ignite gasoline fumes.[0]

[0] https://www.skybrary.aero/articles/ignition-fuels

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Re:Oregon Finally Legalizes Pumping Your Own Gas After 72 Years by Arrath on Monday June 26, 2023 @05:55PM (#36486404)
Good to know! I have a little tic of grounding myself before coming near the pump handle so I guess I'll just keep doing that.
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Re:Oregon Finally Legalizes Pumping Your Own Gas After 72 Years by darreninthenet on Monday June 26, 2023 @06:59PM (#36486987)
A few years back Richard Hammond (the short former Top Gear UK) presenter did an experiment with this on another British show of his called Braniac (a sort of light entertainment popular science show) where he filled a caravan with petrol and fumes and attempted to get it to ignite through static electricity (they did lots of different ways of generating it).

They couldn't do it and even when for the laughs they decided to blow it up with a match it still didn't ignite.

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Re:Oregon Finally Legalizes Pumping Your Own Gas After 72 Years by Eisenstein on Monday June 26, 2023 @07:02PM (#36487010)
The fuel air density has to be a certain ratio. This is why you have complicated systems to inject just the right amount of air and gasoline into the pistons. I would guess that since it is much harder to combust liquid gasoline is would be much harder to combust a very heavy gas/air combo.

Probably best to not use entertainment shows as a metric for safety.

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Re:Oregon Finally Legalizes Pumping Your Own Gas After 72 Years by kalleboo on Monday June 26, 2023 @10:23PM (#36488229)
Mythbusters also did experimenting with static and gasoline vapors https://www.youtube.com/watch?v=VjrkwxMhc4s
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Re:Oregon Finally Legalizes Pumping Your Own Gas After 72 Years by astura on Monday June 26, 2023 @04:39PM (#36485521)
Well, Here's a few videos of it happening

https://youtube.com/watch?v=FPKen4QwY7I

https://youtube.com/watch?v=MctxwqTLYjk

https://youtube.com/watch?v=1tYO4jvnJHw

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