Our anti-wear protective agent for automotive engines is carefully formulated from dimethyl ether and diethyl ether. Designed specifically for thoroughly cleaning engines and restoring power performance. The usage method is extremely convenient: Replace the engine oil with new one， start the engine， run it at full speed for 5 minutes， and then turn off the engine when it is warm. Add the entire can of product to the oil tank and let it idle for at least 15 minutes. For 6-cylinder engines， add 1 can， or add this product at a ratio of 5% of the engine oil usage. It is recommended to add it every 12，000 to 15，000 kilometers and after changing the engine oil. And it can reduce the frequency of maintenance and extend the vehicle's life cycle.