Do not Pump Full Tank of Petrol.......

READ THE REASONS -- DO NOT DONATE FUEL
Recently I came across a very useful tip. I was surprised to know it but had a doubt so I talked to one of the pump technicians and he too accepted it as a fact. I think apart from providing space for the gas generated inside the petrol tank this is yet another reason why we shouldn't fill the tank to the brim. Many of us are not aware that the petrol kiosk pump has a return pipe-line (in Pink). When the petrol tank (in the car) reaches full level, there is a mechanism to trigger off the pump latch and at the same time a return-valve is opened (at the top of the pump station) to allow excess petrol to flow back into the pump. But the return petrol has already pass through the meter, meaning you are donating the petrol back to the Oil Dealer.

Also only fill up your car or truck in the early morning when the ground temperature is still cold. Remember that all service stations have their storage tanks buried below ground. The colder the ground the more dense the petrol, when it gets warmer petrol expands, so buying in the afternoon or in the evening....your liter is not exactly a liter. In the petroleum business, the specific gravity and the temperature of the petrol, diesel and jet fuel, ethanol and other petroleum products plays an important role.

A 1-degree rise in temperature is a big deal for this business. But the service stations do not have temperature compensation at the pumps.

When you're filling up do not squeeze the trigger of the nozzle to a fast mode If you look you will see that the trigger has three (3) stages: low, middle, and high. You should be pumping on low mode, thereby minimizing the vapours that are created while you are pumping. All hoses at the pump have a vapour return. If you are pumping on the fast rate, some of the liquid that goes to your tank becomes vapour. Those vapours are being sucked up and back into the underground storage tank so you're getting less worth for your money.

One of the most important tips is to fill up when your Petrol tank is HALF FULL. The reason for this is the more Petrol you have in your tank the less air occupying its empty space. petrol evaporates faster than you can imagine. petrol storage tanks have an internal floating roof. This roof serves as zero clearance between the Petrol and the atmosphere, so it minimizes the evaporation. Unlike service stations, here where I work, every truck that we load is temperature compensated so that every litre is actually the exact amount.

Another reminder, if there is a petrol truck pumping into the storage tanks when you stop to buy Petrol, DO NOT fill up; most likely the petrol is being stirred up as the Petrol is being delivered, and you might pick up some of the dirt that normally settles on the bottom

Great piece, I will try most of the theories indicated. No wonder one always argue over the gauge of different fuel station. Ignorance is truly a disease

Thanks bro for the info.

This is, indeed, good info

I bet u the posters above me don't have a bicycle not to talk of a car... anyways I'll think about it

ta4ba3:
I bet u the posters above me don't have a bicycle not to talk of a car... anyways I'll think about it

This is why kids shouldn't have access to internet. This is a new year, yet your stupidity is ever so glaring. So, In your warped, myopic mind, you believe you are the only one with a car.

[quote author=dustmalik post=41544711]
This is why kids shouldn't have access to internet. This is a new year, yet your stupidity is ever so glaring. So, In your warped, myopic mind, you believe you are the only one with a car.[/quot

So am a kid and what are u ancient of days

Wonderful.

Guy u make sense o! Thks 4 sharing

Amazing ....I like the various parts in the story

informative

knowledge is power!

Thanks, nice info.

CHAI!!! Op don dabaru business 4 Dem petrol attendants & filling station owners.

Op please stop this rubbish.

Stop spreading baseless lies. What do you know about a fuel dispenser?


Do you know that what you calla return valve at the tip of the nozzle is a pipe called the venturi?


Have you not notice that once any fluid touches the tip of the nozzle thereby touching this vebturi, it shuts off the flow of the liquid being dispensed?

This shutting off is caused by this venturi which blocks the air that gets to the dispenser and automatically shuts off the flow.


My friend Google is your friend, alright?

Pavore9:
knowledge is power!

The op is wrong!!!!!!!!!!!!!!!!!!


Please Google.

Walphem:
Great piece, I will try most of the theories indicated. No wonder one always argue over the gauge of different fuel station. Ignorance is truly a disease

The op is the one ignorant here my friend.


Why does the dispenser shut off whenever PMS, dpk or ago it even water touches the tip of the dispenser?


The op is not knowledgeable.

Which vent will make the fluid flow back to the ungerground tank?

Which pipe will this liquid flowing back pass through?

How is the connection made?


The op should go and rest please. He is peddling lies from the pit of hell!!!!!!!!!!!!!!!!!!!

hopilo:
Do not Pump Full Tank of Petrol.......

READ THE REASONS -- DO NOT DONATE FUEL
Recently I came across a very useful tip. I was surprised to know it but had a doubt so I talked to one of the pump technicians and he too accepted it as a fact. I think apart from providing space for the gas generated inside the petrol tank this is yet another reason why we shouldn't fill the tank to the brim. Many of us are not aware that the petrol kiosk pump has a return pipe-line (in Pink). When the petrol tank (in the car) reaches full level, there is a mechanism to trigger off the pump latch and at the same time a return-valve is opened (at the top of the pump station) to allow excess petrol to flow back into the pump. But the return petrol has already pass through the meter, meaning you are donating the petrol back to the Oil Dealer.

Also only fill up your car or truck in the early morning when the ground temperature is still cold. Remember that all service stations have their storage tanks buried below ground. The colder the ground the more dense the petrol, when it gets warmer petrol expands, so buying in the afternoon or in the evening....your liter is not exactly a liter. In the petroleum business, the specific gravity and the temperature of the petrol, diesel and jet fuel, ethanol and other petroleum products plays an important role.

A 1-degree rise in temperature is a big deal for this business. But the service stations do not have temperature compensation at the pumps.

When you're filling up do not squeeze the trigger of the nozzle to a fast mode If you look you will see that the trigger has three (3) stages: low, middle, and high. You should be pumping on low mode, thereby minimizing the vapours that are created while you are pumping. All hoses at the pump have a vapour return. If you are pumping on the fast rate, some of the liquid that goes to your tank becomes vapour. Those vapours are being sucked up and back into the underground storage tank so you're getting less worth for your money.

One of the most important tips is to fill up when your Petrol tank is HALF FULL. The reason for this is the more Petrol you have in your tank the less air occupying its empty space. petrol evaporates faster than you can imagine. petrol storage tanks have an internal floating roof. This roof serves as zero clearance between the Petrol and the atmosphere, so it minimizes the evaporation. Unlike service stations, here where I work, every truck that we load is temperature compensated so that every litre is actually the exact amount.

Another reminder, if there is a petrol truck pumping into the storage tanks when you stop to buy Petrol, DO NOT fill up; most likely the petrol is being stirred up as the Petrol is being delivered, and you might pick up some of the dirt that normally settles on the bottom

Op please about the issue of filling the tank and flow back to the underground tank? You are dead wrong!!!!!!!!!!!!!!!!!!


Stop spreading lies please.

So why does some tank get filled and start pouring out? Won't that tell the buyer it's full?

ckmayoca:
So why does some tank get filled and start pouring out? Won't that tell the buyer it's full?

Do not mind the op.

Does he not see that as the tank is getting filled, the pump attendant continues to withdraw the nozzle to avoid it touching the liquid?

Does the op know why?

Jusradical, if you have anything contrary bring it to the table and stop ranting.

jusRadical:
Op please stop this rubbish.

Stop spreading baseless lies. What do you know about a fuel dispenser?


Do you know that what you calla return valve at the tip of the nozzle is a pipe called the venturi?


Have you not notice that once any fluid touches the tip of the nozzle thereby touching this vebturi, it shuts off the flow of the liquid being dispensed?

This shutting off is caused by this venturi which blocks the air that gets to the dispenser and automatically shuts off the flow.


My friend Google is your friend, alright?

bros help me tell am ooo

he just post something thinking he is a superstar

thanks for clarifying his stupidity

jusRadical:
Op please stop this rubbish.

Stop spreading baseless lies. What do you know about a fuel dispenser?


Do you know that what you calla return valve at the tip of the nozzle is a pipe called the venturi?


Have you not notice that once any fluid touches the tip of the nozzle thereby touching this vebturi, it shuts off the flow of the liquid being dispensed?

This shutting off is caused by this venturi which blocks the air that gets to the dispenser and automatically shuts off the flow.


My friend Google is your friend, alright?

Guy why are you the only person wandering around this thread claiming is a lie, yet you can give a better explanation of the true scenario.

I guess you work with a retail outlet, and that where you guys see choppings, how much do retail outlet pay you as salary, so that meant to augments it, instead of debunking it, we all knw what is obtainable.

hopilo:
Jusradical, if you have anything contrary bring it to the table and stop ranting.

dnt mind the guy.
I work in a depot both shore and Aviation, temperature is alway factor during calibration of equipment such as the meter, for adequate compensation when the temperature is high, which is not applicable at retail outlet, so it advisable you buy your fuel early in the morning,

on the return valve, that's the technology outside now, if you dnt know abt it yet, jst go silent on it, instead of telling us it a lie.

like it or hate it!!black market is THE BEST!i

I smell kwaruption! Bubu must. hear this!
On a serious note, all the money that all b realised from All these tricks employed by filling station
attentant would be enough to fund fuel subsidy!!!

Very nice and useful information

jcflex:



Guy why are you the only person wandering around this thread claiming is a lie, yet you can give a better explanation of the true scenario.

I guess you work with a retail outlet, and that where you guys see choppings, how much do retail outlet pay you as salary, so that meant to augments it, instead of debunking it, we all knw what is obtainable.




dnt mind the guy.
I work in a depot both shore and Aviation, temperature is alway factor during calibration of equipment such as the meter, for adequate compensation when the temperature is high, which is not applicable at retail outlet, so it advisable you buy your fuel early in the morning,

on the return valve, that's the technology outside now, if you dnt know abt it yet, jst go silent on it, instead of telling us it a lie.

I laugh at the truth that you have comprehension issues.


Did I write about calibration?

Did I write about when to buy fuel and when not to buy?


My friend do not blame anybody if you cannot read and understand.

I was debunking what he said about fuel going back to the underground tank when a vehicle's tank is filled.


My friend read and understand before running out to type.


Why does the nozzle shut off whenever it,s tip touches the liquid being discharged? How does the liquid flow back to the underground tank?
Never you forget that a pump having overflowing issues is a different issue.

Do you know how a fuel dispenser works?

You work in a depot and not a filling station so talk of what you know.

Moreover, Google is your friend.

hopilo:
Jusradical, if you have anything contrary bring it to the table and stop ranting.

My Google is your friend. Is it too difficult to Google?

Correct!

Hmm

Op

First, yourr article has been online for quite sometime now and it has been debunked several times. Stop spreading it. It's big lie

Pumps don't return fuel.


2nd, about buying petrol In morning or afternoon..Not
worth bothering with, underground gasoline storage tank temperature is fairly constant, so the volume does not change with ambient air temperature.
Besides that, the expansion co-efficient of gasoline is 0.069% per gallon. Which means, if you buy one gallon of gas at 100naira in morning from let's say black market, after expansion, you will save less than 10kobo. Doesnt worth it at all.