Carlube Engine Flush is a carefully balanced blend of solvents, surfactants, dispersants and a neutralising agent which quickly breaks down sludges and deposits. Which can otherwise remain in the engine, causing rapid deterioration of the new oil. Directions for use: Ensure engine oil is at a safe level. Warm engine to oerating temperature. Add entire contents (300ml) to engine and idle for 10-20 minutes. It is advantageous if engine speed can be varied slightly during this time but do not rev hard. stop the engine and drain immediately whilst hot. Avoid skin contact. Remove oil filter and leave to drain for 30 minutes. Replace drain plug and fit new filter. Refill with correct grade of engine oil. Note: Under no circumstances should the vehicle be driven whilst engine flush is in use. Please take extra caution when draining hot oil from the vehicle and wear protective equipment. Store in an upright position and secure when transported. Key Features: Removes oil deposits and sludge. Free valves and sticking engine parts. Contains additives protecting engine during cleaning process. About Carlube It all started in 1988 when Clifford Schofield, the father of cutting compounds, decided to expand Tetrosyl into the lubrication sector with his new brand Carlube. Within just 30 years of trading and more products added to The brand, Carlube has grown to become the largest independent oil manufacturer in the UK with all production taking place at our state-of-the-art manufacturing facility in the Northwest of England. Since the launch of Carlube"s first product in 1988, our Formula 1 Non-Spec Oil, we have evolved and grown to be capable of producing all the lubricant requirements from standard mineral oils right through to fully synthetic high performance racing oils.