World demand for lubricants is projected to reach 41 million metric tons by 2015, driven by strong economic growth in developing countries. Process oils are expected to be the fastest growing product segment due to the difficulty in boosting efficiency. The developing regions of Asia, Africa, Central and South America, and Eastern Europe will be the main drivers of growth in key markets like motor vehicles and manufacturing. Lubricant demand in Western Europe and North America is forecast to increase at a slower pace.