Can Different Types of Motor Oil Be Mixed?

[StMaximus]

Different types of motor oil can be mixed, but it is not recommended. Various oils contain different chemical compositions, and mixing them may lead to accidents, posing significant safety hazards. Therefore, mixing should be avoided whenever possible, as it makes it difficult to accurately assess the oil quality. If mixing is necessary under special circumstances, certain blending principles should be followed. Principles for mixing motor oils: 1. Mix oils of similar quality, or when high-quality oil is mixed with lower-quality oil, the resulting mixture should be treated as lower-quality oil; 2. To adjust the viscosity or other physicochemical properties of the oil, different grades of the same type of oil can be mixed; 3. Mineral oils can generally be mixed with each other, and mixing between mineral oils and semi-synthetic oils is often acceptable, but mixing between full synthetic oils and mineral oils should be done with caution.