Kerja Keras Adalah Energi Kita. With a motto of kerja keras adalah energi kita or hard work is our energy as a result can be seen on October 23, 2009, located in sydney Australia, through its Lubricants business unit PT.Pertamina successfully launched a high-quality lubricant to market Australia to include some segments such as automotive and industrial. Lubricant products PT.Pertamina hard work is named as Fastron, Prima XP, and Mediterranean SX and other many other product brands that launched her into the market pertamina Australia. With hope in his early sales figures could reach 3-5 containers per month.