This engine flush from Liqui Moly is formulated to effectively clean the entire oil system of your vehicle. It works by dissolving sludge, varnish, and other harmful residues that accumulate over time, which can impede oil flow and reduce engine efficiency. By thoroughly cleaning the engine internals, Liqui Moly Engine Flush helps to restore proper oil circulation and ensures that new engine oil can perform at its best. This process is crucial for extending the life of your engine and maintaining its peak performance. Using this product before an oil change is a simple yet effective way to safeguard your engine against wear and tear. It is compatible with all common engine oils and additives, making it a versatile solution for most vehicles.