PETROL TIPS - info!! (MUST READ)
Discussion
Just had this email doing the rounds at work, see what you think...
PETROL TIPS - info!! (MUST READ)
With Petrol expected to reach $2 per litre by end of 2011, these tips that I received from a friend might come in handy.
TIPS ON PUMPING PETROL
I don't know what you guys are paying for petrol.... But here in Melbourne we are paying up to $1.30 to $1.50 per litre. My line of work is in petroleum for about 31 years now, so here are some tricks to get more of your money's worth for every Litre:
Here at the Shell Pipeline where I work in Melbourne, we deliver about 4 million litres in a 24-hour period thru the pipeline.. One day is diesel the next day is jet fuel, and petrol, regular and premium grades. We have 34-storage tanks here with a total capacity of 16,800,000 Litres.
Only buy or 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 gallon is not exactly a gallon. 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.
To have an impact, we need to reach literally millions of Petrol buyers. It's really simple to do.
PETROL TIPS - info!! (MUST READ)
With Petrol expected to reach $2 per litre by end of 2011, these tips that I received from a friend might come in handy.
TIPS ON PUMPING PETROL
I don't know what you guys are paying for petrol.... But here in Melbourne we are paying up to $1.30 to $1.50 per litre. My line of work is in petroleum for about 31 years now, so here are some tricks to get more of your money's worth for every Litre:
Here at the Shell Pipeline where I work in Melbourne, we deliver about 4 million litres in a 24-hour period thru the pipeline.. One day is diesel the next day is jet fuel, and petrol, regular and premium grades. We have 34-storage tanks here with a total capacity of 16,800,000 Litres.
Only buy or 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 gallon is not exactly a gallon. 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.
To have an impact, we need to reach literally millions of Petrol buyers. It's really simple to do.
h
some email said:
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.
It also means that you'll be carrying round more fuel than you might need. What could be 100kg extra for no reason doesn't seem like a good idea.some email said:
petrol evaporates faster than you can imagine.
I love it when people tell me what I'm thinking. It saves so much time.MX7 said:
some email said:
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.
It also means that you'll be carrying round more fuel than you might need. What could be 100kg extra for no reason doesn't seem like a good idea.some email said:
petrol evaporates faster than you can imagine.
I love it when people tell me what I'm thinking. It saves so much time.yonex said:
A better tip is to find a job where someone picks up your fuel bills 
And although some of the above might hold truths filling up when its colder will mean your car could be working harder and using more fuel than if the temperature is warmer.
You do know cars run more efficiently when the air temp is colder outside? The air has more oxygen in it...And although some of the above might hold truths filling up when its colder will mean your car could be working harder and using more fuel than if the temperature is warmer.
Thanks for the post OP. I find it quite interesting, although maybe not a massive money saver. Also, I believe it is correct about filling up in the morning. I am led to believe petrol does expand when warm...
random internet source says said:
Because gasoline expands and contracts based on temperature, the industry uses a standard temperature -- 60 degrees Fahrenheit -- as part of its definition of a gallon. To the industry, a gallon of gasoline is the amount of fuel that occupies 231 cubic inches at 60 degrees.
But at 75 degrees, the same amount of fuel occupies 233.4 cubic inches. At 90 degrees, the gas expands to 235.8 cubic inches.
But at 75 degrees, the same amount of fuel occupies 233.4 cubic inches. At 90 degrees, the gas expands to 235.8 cubic inches.
stickyr6 said:
Only buy or 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 gallon is not exactly a gallon. 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.
Is this really the case? I would have thought it would take more than a few hours to warm or cool a tank protected by a couple of meters of insulation(soil/concrete?)? I would have thought the temperature would be pretty constant over any 24hr period.How deep are they?
StottyZr said:
You do know cars run more efficiently when the air temp is colder outside? The air has more oxygen in it...
So what do you think the ECU does when there is a high quantity of air? Also cold oils signifanctly affect fuel consumption, as does carrying 50kg of fuel you don't need. Jeez, who writes this absolute b00l0cks??
1: The tanks (in the UK) are buried under the forecourt, generally well over 6feet deep. And they contain something like 30,000 litres a tank. Do the math on the heat transfer (terrible heat transfer co-efficient, and high specific heat capacity due to the massive volume) and there will be virtually no difference in fuel density between AM and PM (and anywhere really hot, like say Arizona, where there is actually enough solar load to heat the ground significantly) that same ground also stores said heat, so the fuel will still be hot in the morning !
2: Pump speed? WTF? ok, i could see there being slightly more "cavitation" at high flows, on the inlet side of the pump, but any fuel that vapourises doen't just magically dissapear! (No, it just re-condenses on the pressure side of the pump back into liquid)
3: Since approx 1992, everycar sold in the UK (and pretty much the rest of the 1st world) has had a "carbon canister" connected to the fuel tank. This is to prevent "hydrocarbon" emissions caused by fuel vapour released from your fuel tank. (there is no point having a clean tailpipe, say <0.1g/km of THc, only to let several hundred grams loose from the tank vent!!). This carbon canister absorbs fuel vapour from the partially full tank, and guess what, when you start the engine, this tank is vented to the intake system, and low and beyhold, your car burns the vapour. So you don't loose it there either.
So, thats 0/3 then for those "facts".............
1: The tanks (in the UK) are buried under the forecourt, generally well over 6feet deep. And they contain something like 30,000 litres a tank. Do the math on the heat transfer (terrible heat transfer co-efficient, and high specific heat capacity due to the massive volume) and there will be virtually no difference in fuel density between AM and PM (and anywhere really hot, like say Arizona, where there is actually enough solar load to heat the ground significantly) that same ground also stores said heat, so the fuel will still be hot in the morning !
2: Pump speed? WTF? ok, i could see there being slightly more "cavitation" at high flows, on the inlet side of the pump, but any fuel that vapourises doen't just magically dissapear! (No, it just re-condenses on the pressure side of the pump back into liquid)
3: Since approx 1992, everycar sold in the UK (and pretty much the rest of the 1st world) has had a "carbon canister" connected to the fuel tank. This is to prevent "hydrocarbon" emissions caused by fuel vapour released from your fuel tank. (there is no point having a clean tailpipe, say <0.1g/km of THc, only to let several hundred grams loose from the tank vent!!). This carbon canister absorbs fuel vapour from the partially full tank, and guess what, when you start the engine, this tank is vented to the intake system, and low and beyhold, your car burns the vapour. So you don't loose it there either.
So, thats 0/3 then for those "facts".............
yonex said:
StottyZr said:
You do know cars run more efficiently when the air temp is colder outside? The air has more oxygen in it...
So what do you think the ECU does when there is a high quantity of air? Also cold oils signifanctly affect fuel consumption, as does carrying 50kg of fuel you don't need. Gassing Station | General Gassing | Top of Page | What's New | My Stuff