A quarter of the worlds energy is lost due to friction, corrosion and wear. Robots are machines with movable parts, and the machines that are used to make them obviously have moving parts too. This makes lubrication an interesting but largely ignored part of sustainability in robotics. That is why Castrol Industrial presented at the opening keynote at the European Robotics Forum in Rotterdam. Rocking Robots discussed the importance of reducing friction in robotics with Susan Frame of Castrol Industrial.