Petrol is one of the costliest items in India. Because of that, I used to only put in around 10 liters in my car which would help me move around for almost a week. However, very recently I noticed that whenever I have a full tank of fuel, the consumption was very less and I noticed amazing difference.
Over the last few days I was thinking as to why this would happen and this is what I could think of. Whenever you have less fuel in your tank, you are actually giving more room for the fuel to evaporate. So apart from the normal consumption of the fuel you lose out fuel due to evaporation and its worse in summer. When you have a full tank of fuel there’s less empty space hence less evaporation.
Try this out and I would be happy to hear it works for you too.