Tips for filling up your car with gas to save money and not damage your car
It seems like a simple task, but for experienced drivers, where and how to fill up gas is very important.
How to fill up gas without getting "pickpocketed" and avoid wasting money and damaging the car is a matter of concern for many drivers.
Here are some tips for filling up your car with gas to avoid wasting money, as summarized by experienced drivers.
Limit filling the tank
Filling the tank to the brim will cause your car to use more fuel and cause more damage than filling it to a near-full tank. In addition, filling the tank to the brim in many cases also allows gas station employees to "cheat" you out of money.

The reason is to ensure safety, the pumps always have a reverse suction mechanism of the pump trigger to avoid spilling gasoline. At that time, the gasoline has passed through the meter and the customer still has to pay for the gasoline that is sucked back. Therefore, you should calculate the amount of gasoline to fill to the correct capacity. You should not buy a full tank of gasoline, which is easy to lose, and also makes the vehicle have to "carry" more weight, causing fuel waste.
Limit gas by money
Many people have the habit of filling up their gas tank in even amounts such as 100,000 VND, 500,000 VND or 1 million VND for convenience. However, this way of buying will create favorable conditions for fraudulent behavior at some gas stations, because the programs to "trick" customers on gas pumps are often programmed according to the amount.
To avoid being "pickpocketed" when filling up gas, many drivers advise buying by capacity such as 10 liters, 20 liters... depending on the vehicle's gas tank. Then, the pump will pump the correct amount of gas in liters because this capacity has been regularly inspected and the ratio is almost absolutely accurate.
You should fill up gas when it's cool.
According to experts, drivers should fill up in the morning and evening, and avoid filling up at noon. The reason is that gasoline has the property of expanding with temperature. The higher the temperature, the more gasoline expands and vice versa.

So, it is more beneficial to fill up your tank when it is cooler. Although the difference is not huge, it is worth trying.
Require the gauge to "0" before pumping.
Although there is a regulation that the meter must return to “0” before filling up, some employees do not comply and fill up for many customers in succession. This makes it difficult to monitor and calculate the actual amount of fuel pumped.
Furthermore, this often has errors between pumping times, so the customer may be the one to suffer. Therefore, ask the staff to return the meter to “0” before pumping.
Always watch the gauge carefully when pumping gas.
If you are not careful, the gas station attendant may under-fill the tank. Therefore, while pumping gas, the buyer should constantly monitor the meter at the gas station. This will help you promptly detect any signs of fraud.
Fill with the correct type of gasoline
Each car will have a different type of gasoline suitable for it. Therefore, filling the car with the right type of gasoline will significantly save energy. If you do not fill the right type of gasoline, the gasoline will not burn completely but will create residue in the car, causing the car to waste more power and consume more gasoline.
Choose a reputable gas station
Buyers should fill up at familiar and reputable gas stations. These locations often have guaranteed fuel quality, standard measuring systems, fuel pumping procedures, and clearly listed prices on LED or LCD screens on the gas pumps.
Do not wait for the fuel needle to point to the red line before filling up
To prolong the life of your car, do not wait until the fuel gauge is at the red line before filling it. Because some engines are designed to run with a constant supply of fuel. Therefore, running out of fuel can easily allow air to enter, causing damage.