Parts & Accessories Spare parts Where do used oils go? Used oils are directed to one of two main paths: Re-refining: A treatment option that removes impurities, water, and sediments from used oil to reproduce base oils suitable for manufacturing high-quality new lubricating oils. Heat Recovery/Alternative Fuel: A simplified treatment to use the oil as alternative fuel in cement plant furnaces or heavy industrial facilities equipped with special emission filters. 4. Requirements for Greases and Service Stations Having an official collection contract with an accredited collection company. Providing periodic records of collected quantities. Equipping the storage site with an impermeable (concrete) floor and oil traps to prevent leakage into the soil.