You may have observed individuals choosing to fill up with gasoline worth Rs 110 or Rs 120 rather than Rs 100 while filling up with petrol or diesel. In a similar vein, some opt for Rs 495 rather than Rs 500. However, why? Is this a myth or a ruse about gas pump meters? An explanation was given by retired railway chief engineer Animesh Kumar Sinha in response to this query on Quora.
 
Sinha claims that pre-set codes are used by gas stations for typical gasoline quantities such as Rs 100, Rs 200, Rs 500, and Rs 1000. Employees save time and effort by entering these codes with a single button click. customers may feel they receive less gasoline as a result, though, if they think these quantities are part of a scam.

In actuality, a flow meter system is used by gasoline pumps. Fuel is dispensed by this system in liters, and all calculations are made using liters alone. Based on the dispensed quantity and the predetermined pricing for gasoline or diesel, the software converts liters to rupees.
 
Consequently, if you pay Rs 100, Rs 110, or Rs 120, the amount may be rounded down. 10.24 liters, for instance, may be rounded to 10.2 liters. Avoiding round numbers does not ensure that you will get more gasoline.
 
One can request fuel in liters and pay the precise amount via UPI to guarantee precise fuel distribution.
 
The flow meters at gas stations are routinely calibrated and inspected by the Weights and Measures Department and oil corporations. petrol cannot be changed since its density is fixed.
 
Visit the government portal or complain to the Weights and Measures Department if your worries persist.
 
The petrol station, usually controlled by a commercial corporation, may face heavy fines for legitimate complaints of short-fuelling. Typically, the pump itself has a toll-free complaint number posted.
 
 

Find out more: