2) The Tanker Carrier does it on the way to the Pump.

3) The Pump Owner does it by mixing either Diesel/Kerosene or Naphtha derivatives, which are Rs. 10-12/Lr cheaper than Petrol – Thanks to the ‘Socialistic’ dual pricing Policies of our well-meaning Government. While Diesel/Kerosene will show up in the ‘Filter Test’, other Solvents like Naphtha and its derivatives will not!

In the ‘Accidental’ category, you can get fuel contamination by:

1) Water condensation/seepage into underground Tanks.

2) Rust/Dirt and other solid particles getting into old and un-cleaned Tanks.

In Part-II to follow, we will discuss how one can avoid being taken for a ride on ‘under-dispensation/quantity’ and other extraneous factors that can affect the Fuel-Consumption of a Car.