Not fully depressing nozzle trigger when fuelling at petrol station

Jackmydad

EssexExile wrote: »

I used to own a Mitsubishi Galant that would only allow you to fill very slowly, usually only if you held the gun at some strange angle. I didn't notice getting any more fuel that I should, I just noticed spending an awful lot of time at petrol stations.

While I was still at school I had a part time job on the pumps.
It was 1970-71. Can't remember which were and which weren't now, but some cars were very tricky to fill at more than a dribble, requiring the nozzle to be at the "right" angle. Others you could just dump the fuel in.

Jackmydad

Joe_Horner wrote: »

But if you do that you need to make sure you have those clip-on magnetic fuel conditioners on your fuel lines. Otherwise it'll keep trying to flow north - south regardless of which way the car's pointing and takes more effort to pump from the tank when you're heading sideways.

There's always somebody who comes up with a problem!
Personally I did away with the fuel conditioner, instead I dance around the car naked before every journey, three complete circles, deosil, chanting "More mpg for me" as I go.
I find that just as effective, although the neighbours have complained several times. . .

sevenhills

oldagetraveller wrote: »

Add fuel when the temperature is low and you should be able to squeeze in extra volume.
That combined with the magnetic field effect and you are quids in.:p

That sounds like a good idea, things contract when colder and expand when warmer; so filling up on a cold morning should mean more fuel per ££

AdrianC

Jackmydad wrote: »

...instead I dance around the car naked before every journey...

sevenhills wrote: »

That sounds like a good idea, things contract when colder and expand when warmer...

Altogether TMI

Jackmydad

AdrianC wrote: »

Altogether TMI

:rotfl::rotfl::rotfl:

facade

sevenhills wrote: »

That sounds like a good idea, things contract when colder and expand when warmer; so filling up on a cold morning should mean more fuel per ££

Some fuel pumps have temperature compensation and "correct" the volume to what it would be at 15 degrees C, some don't. You need a fuel pump that doesn't have "litres at 15 degrees C" on the faceplate.




That will give you a double win, as the colder fuel is denser, so the amount of energy you get per litre is up, even if the fuel stays cold, so you will get more miles to the gallon. If they correct the volume to 15 degrees, then you get the same amount of miles per pound.


Have a look at

assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/685831/standard-temperature-accounting-displays.pdf


I cant post with the h t t p s at the front of the link from Russia

redux

The fuel storage at the forecourt is usually underground, and its temperature doesn't vary much.

zagubov

The fuel companies produce seasonal mixes to cope with different seasonal temperatures anyway.

They might have different mileages irrespective of the temperature volume effect.

I don't think that much about it.

Instead I drive an economical non-gas-guzzling car that's small enough to cope with London parking spaces and narrow country lanes. Win-win.

Scrapit

A reduced flow rate means low delivery rate and low price against time spent filling. The price is per litre so no matter what speed it's delivered it's the volume that matters.

A_Nice_Englishman

Surely if the fuel is pumped more quickly there will be more heat from friction and turbulence, increasing the volume? Good luck measuring the change without the sort of equipment found in a University Physics lab though!