PETROL TIPS - info!!  (MUST  READ)
How to get more per liter. Very informative and MONEY-SAVER!!!

TIPS  ON PUMPING PETROL

I  don't know what you guys are paying for  petrol.... I am paying  up to Rs.1.35 to Rs.1.50 per liter. 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 Liter: 

Here  at the Shell Pipeline where I work ,  we deliver about 4 million liters in a 24-hour  period .. 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  Liters.

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 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 modeIf 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 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 liter 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.