Does shaking a vehicle while filling up makes a difference?

Does shaking a vehicle while filling up makes a difference?

  • Yes, you can fill up with more fuel compared to if you didn't shake.

    Votes: 5 7.4%

  • No, you are making a fool of yourself.

    Votes: 55 80.9%

  • Other, let me put it to you like this.....

    Votes: 8 11.8%
  • Total voters
    68
I think all taxi driver hate their whip and they shake it during filling just to let it know how much they truly detest it.
 
SauRoNZA said:
On paper? Yes.

In reality, no.

At best you are getting maybe 500ml extra in there but the thing is unless you are driving a considerable distance immediately after you are likely to lose it all in the overflow.
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You'll be surprised, sometimes up to 5l can be squeezed into the expansion chamber. But yes, soon lost, mainly due to evaporation. Diesel is ok though, not as volatile as petrol.
 
RonSwanson said:
You'll be surprised, sometimes up to 5l can be squeezed into the expansion chamber. But yes, soon lost, mainly due to evaporation. Diesel is ok though, not as volatile as petrol.
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Well I mean it’s going to be quite different from one vehicle to another and their exact designs I guess.

Maybe these Hi-aces are all in that category.

Thing is it’s there for a reason and more often than not it ends up just pissing out again.
 
WAslayer said:
I think the general assumption is that the shaking gets rid of trapped air and you get more fuel..

Reality is though, the extra fuel you might get, is tiny in comparison to the size of your tank..
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But you still pay for it :)
 
No, but I do find shaking while filling up my vehicle makes a difference. Sometimes they tell me to just go without even having to pay.
 
WAslayer said:
I think the general assumption is that the shaking gets rid of trapped air and you get more fuel..

Reality is though, the extra fuel you might get, is tiny in comparison to the size of your tank..
Click to expand...
Or it spills out the air vent. My vehile does this once I get to 180ltrs mark.
 
So I heard that some cars so actually have like a air bubble in the tank and you need to shake the car to actually get it full. This was always a curiosity to me and I could never understand how they didn't pick this up in the design process.

I think its one of those weird things where people did it for a reason a long time ago and just kept on doing it, now other people believe you have to do this thing.
 
Interesting habit, which I struggle to completely understand. There may be some cases where this could help a little of you are driving a long distance and you the distances between filling stations are substantial.

I know that in some countries it is illegal to continue filling after the nozzle clicked and stopped the flow of fuel.
 
Nerfherder said:
I think its one of those weird things where people did it for a reason a long time ago and just kept on doing it, now other people believe you have to do this thing.
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Hangover from when cars never had a breather to the fuel tank so you’d get a fuel lock in the filler pipe.
 
geezer said:
Interesting habit, which I struggle to completely understand. There may be some cases where this could help a little of you are driving a long distance and you the distances between filling stations are substantial.

I know that in some countries it is illegal to continue filling after the nozzle clicked and stopped the flow of fuel.
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So you will get maybe 10km closer to that fuel station still 90km away...

It's called a jerry can......
 
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