WHILE reading a page titled General Knowledge on a popular social networking site, I came across an article that offered tips on car fuelling with the underlying message for car owners not to 'donate' fuel and ensure they pumped in exactly what they paid for.
Those tips ranged from how much to fill, and when to and not to fill.
Mechanic Pravin Chand concurred with those tips and offered an explanation on why it was important for car owners to note down.
He said when filling, car owners must ensure they do not fill less fuel, not a quarter or lower.
He said when this was done, it could choke the engine and it would not start.
He suggests to always fill in a half tank or more.
He said sometimes the fuel was dirty and when you pump in less fuel, moisture would form inside the tank.
And when this happens, the engine begins to jerk and it will generate less power needed to run the car effectively.
For diesel-generated cars, owners will notice black smoke coming out.
Better still, he said drivers must be able to calculate the fuel they pump in according to the distance they intend to travel.
On the other hand, Mr Chand said drivers must also be aware not to fill the fuel tank full to the brim either.
He said there needed to be space in the tank for gas that was generated inside after fuelling.
He said there was a breather in the tank and it would need to breathe.
"If you fill in a full tank, it can bust the pipeline. You will notice that when you fill a full tank, sometimes when you open the tank lid, you will hear a hiss sound. That shows the pressure inside the petrol tank," Mr Chand said.
"Your breather should be clear at all times. If it doesn't, it can throw fuel out when you open the tank lid."
Another interesting tip, he concurs with the idea of filling your vehicle in the morning when the ground temperature is still cold. The General Knowledge page on Facebook revealed that the colder the ground, the more dense the petrol.
And when it gets warmer, petrol expands. So when buying in the afternoon or in the evening, your litre is not exactly a litre.
Mr Chand agrees saying filling in the morning, the petrol settles in the tank and the right amount is filled.
Compared to the afternoon and or in the evening, it's not all petrol, some are actually gas and you will not get the right fuel quantity you paid for.
Mr Chand said car owners must also ensure not to squeeze the trigger of the nozzle to a fast mode when filling.
He said the pump trigger had three stages — low, middle, and high.
He said fuel should be pumped using the low mode, which would minimise the vapour created while pumping.
"You will have to fill your car slowly because if you fill at a high speed, the fuel will not settle in the tank."
General Knowledge, that cited a conversation with a pump technician, also revealed that all hoses at the pump have a vapour return.
It said if you were pumping on a fast rate, some of the liquid that goes to your tank becomes vapour and that vapour gets sucked up and back into the underground storage tank so you're getting less worth for your money.
And if car owners do not already know, Mr Chand said an important tip to remember was to always top up fuel when the petrol tank was half full.
He said the more petrol contained in the tank, the lesser the space occupied by air, adding petrol evaporates very fast.
General Knowledge also reminded car and truck owners that 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."