Does mixing engine oils have an impact on the engine?

[VonAriana]

There will be an impact. Different types of oils contain different chemical substances, and mixing them may lead to accidents, posing significant safety hazards. It should be avoided as much as possible; otherwise, it will be difficult to accurately assess the quality of the oil. If mixing is necessary under special circumstances, it can be done according to certain mixing principles. Cleaning effect: The cleaning effect refers to removing residues such as carbon and oil produced by combustion, or dissolving these residues in the oil. Through the oil circulation, impurities are carried to the engine oil filter. Engine oil can clean the engine, remove impurities inside the engine, and protect metal surfaces from corrosion by acids formed during combustion. Cooling effect: The cooling effect refers to cooling the engine. Engine oil can assist the cooling system (such as water, radiator, water pump, cooling circulation system, and airflow passing through the engine and oil sump) in removing the heat generated by the pistons. When cooling the pistons, gasoline must be sprayed from the opposite side. Therefore, engine oil must have excellent cooling performance and be able to withstand high temperatures.