Condition of the tires with air pressure correctly will reduce the effects of friction tires against the road surface, so that fuel consumption will be more economical.
Driving with 50kPA wind pressure (0.5 kg/cm2) below should be to reduce fuel efficiency by 2-4% within and outside the city
Consider installing a tire pressure monitor in your car, so it can know when to fill in or add to it. With the correct tire air pressure will increase traction to the road surface. In addition to the maintenance of the environment, you also will get a safer tire.
