Save fuel with tyre pressure

A good "green" and very low cost idea of saving fuel can be to make checking of type pressure mandatory whenever a person refuels his vehicle. This will save a very small part of the fuel but will certainly be useful.

For example:

- If suppose the type pressure affects both the mileage/litre and emissions by 2%

- An average person drives around 500 Kms/month, 12 Km/litre is the average mileage of a vehicle

- We have 2 crore vehicles in India of which around 5% run on low type pressure

(Affected Average/litre) * (Average litres burnt/month) * number of vehicles

(2/100 * 12) * (500/12) * 10,00,000 = approx Kms of fuel every month

= 1,00,00,000 (I crore Kms) of fuel can be saved every month

The figure would be much larger if all the vehicles in the world are taken into account.