Cera Tec from Liqui Moly is a high tech ceramic based oil additive designed to prevent metal to metal contact and reduce friction and wear, increasing component life and improving efficiency and reducing fuel consumption. Suitable for most 4 stroke petrol and diesel engines and manual transmission use. Safe for use with Catalytic converters and DPFs.Reduces friction increasing component lifeSuitable for engines and manual transmissionsEasy to use, simply add to oilEffective for up to 50,000km (31,000 miles)300ml bottle treats up to 5 litres of oilTechnical Data Sheet