This is the pressure affecting the tire that determines how much energy the vehicle needs to maintain the tire's motion. The decreased rolling resistance succeeds in reducing the vehicle's fuel consumption and CO2 emissions. The lower tire weight also eases the driving pressure off the tread area, which lengthens the tread life. This, along with the guaranteed even tread wear, extends the tire's usability greatly. The result is a long lasting tire that is fuel efficient and environmentally friendly.