The Liqui Moly Oil Change Kit (5W30) - 137327 is a comprehensive set of products designed to facilitate an oil change for a car. It includes three main components: an oil filter, an engine oil, and an oil drain plug gasket. The oil filter is responsible for filtering out impurities and debris from the engine oil, ensuring that only clean oil circulates through the engine. The engine oil is a high-quality 5W30 oil, suitable for use in a wide range of vehicles and providing excellent lubrication and protection for the engine. The oil drain plug gasket is a small but important piece that creates a tight seal between the oil pan and the drain plug, preventing any leaks. Together, these three products make up the Liqui Moly Oil Change Kit, providing all the necessary components for a successful oil change.