Removes deposits from cooling systems in all motor vehicles. It removes scale, grease, sludge and other deposits to allow restored performance and proper cooling. Suitable for all cooling circuits. Compatible with most conventional coolants and antifreezes. One 150 mL can is sufficient for a 5 liter (1.3 gallon) system. Removes oil and grease-based contaminants. Chemical conversion of lime. Compatible with antifreeze. Neutral behavior on rubber and plastics. Neutralizes acids. Disperses sludge. Application / Notes: Add contents to the cooling system, allow thermostat to open then idle for 10 - 30 minutes depending on level of contamination. Drain system, then flush with clean water. One 150 mL can is sufficient for a 5 liter (1.3 gallon) system.