The Liqui Moly Maintenance Service Kit - 136902 is a comprehensive kit of products designed to provide essential maintenance for a car. It includes six different items, each specifically chosen to help keep a car running smoothly and efficiently. The kit does not include any brand names, but rather focuses on the type of product included. This ensures that the kit can be used for a wide range of cars and models. The contents of the kit are as follows:

1. Engine Oil - This is a type of lubricant designed to reduce friction and wear in the engine, ensuring smooth operation and prolonging the life of the engine.

2. Fuel System Cleaner - This is a cleaning product that helps remove deposits and build-up in the fuel system, improving engine performance and fuel efficiency.

3. Radiator Flush - This is a solution that helps remove dirt and debris from the radiator, ensuring proper cooling of the engine and preventing overheating.

4. Power Steering Fluid - This is a type of fluid that helps lubricate and protect the power steering system, ensuring smooth and responsive steering.

5. Transmission Fluid - This is a type of fluid that helps lubricate and cool the transmission, ensuring smooth gear shifts and prolonging the life of the transmission.

6. Air Filter - This is a filter that helps remove dirt and contaminants from the air entering the engine, ensuring clean air for optimal engine performance.

Overall, the Liqui Moly Maintenance Service Kit - 136902 is a convenient and practical solution for maintaining a car's essential systems. It provides a variety of products that work together to keep the car running smoothly and efficiently, helping to prevent costly repairs and breakdowns.