Clever Google Maps tip will help drivers slash fuel consumption

The mode is set to be introduced to nearly 40 countries, with Google saying it is “making a difference all around the world”.

Motorists should also look out where they fill up their car, as the larger names may not always be the cheapest, with supermarkets often proving good value for money.

Supermarket fuel usually comes from the same refineries as the big brands like Shell or Esso, with these brands sometimes adding a range of special additives to their own fuels.

This can improve efficiency and improve performance, hence why they tend to cost more.