This spray contains a high-quality diesel-particle filter (DPF) cleaner. This fast-acting spray will loosen and clean any ash deposits in DPF systems, without disassembling the system. The cleaner is non-corrosive and non-flammable. The cleaner is free from solvents. Before use, carefully read the following directions and act accordingly. The canister should be kept and used at room temperature. The optimal use of the spray can be guaranteed at operating temperatures between 5 °C and 30 °C. Shake before use. Make sure to observe the instructions of car manufacturers before using this product. To use the cleaner, make sure to turn off the engine and allow it to cool down to around room temperature (max. 50 °C). Take the pressure sensor or temperature sensor from the filter. Insert the tube from the spray can into the created opening. Empty the spray can into the filter by spraying 3-5 times, waiting 5 second, and repeat. After spraying, re-install the removed sensor. Start the engine, and let it run idle for at least 15 minutes, to slowly evaporate the fluids that have accumulated in the filter. After 15 minutes, drive the car for a 30-minute test drive. This may further evaporate fluids, and cause the formation of steam.