Nissan has announced its plans to install fuel-consumption meters to all of its cars, something Euro makes have been doing for years. Nissan says it’s doing it to promote awareness of more economical driving habits and that it's part of its new ‘Nissan Green Program 2010’ environmental action plan.

Developers will add a small gauge that shows how much fuel is being consumed at any given moment as well as average consumption, measured in L/km. Nissan will slowly roll-out the meters on all its facelifted and new models. Until now, it’s offered navigation systems which show both instant and average fuel-efficiency.

According to Nissan’s own testing, simply having the indicator on a car’s dash led to improvements in fuel consumption of around ten percent as drivers were constantly aware of how much fuel they were using.