A recent VTT and ANL study shows that friction in cars can be reduced with new technologies such as new surface coatings, surface textures, lubricant additives, low-viscosity lubricants, ionic liquids and low-friction tyres inflated to pressures higher than normal.
A driver can significantly influence the fuel consumption of his or her car. A reduction of 10% in driving speed, e.g. from 110 km/h to 100 km/h, translates into a 16% saving in fuel consumption. Slower speeds also allow for higher tyre pressures; an increase from 2 bar to 2.5 bar can translate into a 3% saving in fuel consumption.