Composition for addressing initial coking issues of the cylinder-piston group. The classic formula effectively and safely cleans pistons, compression, and oil scraper rings from carbon deposits. • Used at the first signs of coking • Decokes compression and oil scraper rings • Restores compression when deviating from the norm by 15 - 20% • Recommended for oil consumption up to 100 ml and 500 ml per 1000 km for naturally aspirated and turbocharged engines, respectively • Reduces oil and fuel consumption • Exposure time from 1 to 12 hours • Packaging is designed for engines up to 4.0 L • Does not require removal of the oil pan • The procedure requires mandatory oil replacement