Liqui Moly Pro-Line Engine Flush - 1L - 2425

For optimal engine health and performance, it is recommended to use Liqui Moly Pro-Line Engine Flush with every oil change. This is especially beneficial for vehicles with higher mileage or those that frequently experience stop-and-go driving conditions.

No, absolutely not. The engine flush is designed to be used for a short period of engine idling only (10-15 minutes). Driving the vehicle with the flush in the oil can significantly reduce the lubricating properties of the oil, potentially causing severe engine damage.

Yes, Liqui Moly Pro-Line Engine Flush has been tested and proven safe for use in all gasoline and diesel engines, including those equipped with Diesel Particulate Filters (DPF), catalytic converters, and turbochargers.

An engine flush is a temporary treatment added to old oil *before* an oil change to clean out deposits, then completely drained. Oil additives, on the other hand, are typically designed to remain in the engine with the fresh oil to provide ongoing benefits like friction reduction, wear protection, or seal conditioning. They serve different purposes.

For engines with suspected heavy sludge buildup or irregular service history, the Liqui Moly Pro-Line Engine Flush can be very beneficial. However, for extremely sludged engines, it's advisable to monitor the oil pressure during the flushing process. In rare cases of severe sludge, a shorter flush duration (e.g., 5-10 minutes) might be considered, followed by a very prompt oil and filter change. Consult a professional mechanic if unsure.

Yes, Liqui Moly Pro-Line Engine Flush is compatible with all conventional and synthetic engine oils. It is designed to work with the existing oil to clean deposits, regardless of its type.

While the engine flush cleans deposits that can cause noise or oil consumption, it is not a mechanical repair. If noise persists or oil consumption remains high, it may indicate underlying mechanical wear (e.g., worn piston rings, bearings) that requires professional diagnosis and repair. The flush optimizes the environment, but cannot fix physical damage.

The general recommendation is 500 ml of flush for every 5 litres of engine oil. If your engine has a larger oil capacity (e.g., 7 litres), you'd still use the 1-litre tin, ensuring a proper cleaning ratio. Using slightly more than the strict ratio (e.g., a full 1-litre tin for a 6-litre oil capacity) is generally safe, but avoid excessive amounts that could significantly dilute the oil's lubricating properties. Always ensure complete drainage and fresh oil refill.

A slight increase in exhaust fumes or a burning smell can occasionally occur, especially in engines with heavy deposit buildup, as contaminants are being broken down and vaporized. As long as it is not excessive or accompanied by engine warning lights, it usually resolves after the oil change. Ensure adequate ventilation when running the engine. If severe or persistent, shut down the engine and consult a mechanic.