Tips on Filling fuel in your Vehicles...

[manoharkumar]

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Tips on Filling fuel in your Vehicles... This is a Message received from a friend who works in Durban at a Fuel pipeline comp: I don't know what you guys are paying for petrol... but here in Durban, we are also paying higher, up to 47.35 per litre. But 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 Marian Hill Pipeline, where I work in Durban, 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, LRP and Unleaded.We have 34-storage tanks here with a total capacity of 16,800,000 litres. ONLY BUY OR FILL UP YOUR CAR OR BIKKIE 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 denser the fuel, when it gets warmer petrol expands, so buying in the afternoon or in the evening.... your litre is not exactly a litre. In the petroleum business, the specific gravity and the temperature of the petrol, diesel and jet fuel, ethanol and other petroleum products play an important role. A 1degree 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. ( In INDIA, we can suggest the guy who is doing the job for us) If you look, you will see that the trigger has three (3) stages: low, middle, and high. In slow mode, you should be pumping on low speed, 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 TANK IS HALF FULL. The reason for this is, the more fuel you have in your tank, the less air occupying its empty space. Petrol evaporates faster than you can imagine. Petroleum storage tanks have an internal floating roof. This roof serves as zero clearance between the petrol and the atmosphere, so it minimizes the evaporation. ANOTHER REMINDER, IF THERE IS A FUEL TRUCK PUMPING INTO THE STORAGE TANKS, WHEN YOU STOP TO BUY, DO NOT FILL UP - most likely the petrol/diesel is being stirred up as the fuel is being delivered, and you might pick up some of the dirt that normally settles on the bottom. Hope, this will help you get the maximum value for your money.

 

[biswa]

I cannot believe this was written above:

your litre is not exactly a litre

Complete hokum. A litre is always a litre, regardless of temperature or pressure. Of course the density varies with both, so a litre of petrol may not always weigh the same, and hence may have different calorific value.

I believe all the tips above (though presented in good faith) are at best marginal in value. For example, as the author notes, petrol is stored under-ground. Do you realize that temperature variations are much more subdued underground than they are above ground? If the daily surface temperature variation is 10C, then the same variation underground may be 5C, depending on the depth.

 

[prasad1]

I cannot believe this was written above:

your litre is not exactly a litre

Complete hokum. A litre is always a litre, regardless of temperature or pressure. Of course the density varies with both, so a litre of petrol may not always weigh the same, and hence may have different calorific value.

I believe all the tips above (though presented in good faith) are at best marginal in value. For example, as the author notes, petrol is stored under-ground. Do you realize that temperature variations are much more subdued underground than they are above ground? If the daily surface temperature variation is 10C, then the same variation underground may be 5C, depending on the depth.

Excellent point sir.
I can not believe the amount of misinformation in mountain of information in the net.
It is like asking the question, which is heavier
1 lb of feather or 1lb of lead. LOL