Can 5w40 engine oils of different brands be mixed?
1 Answers
5w40 engine oils of different brands cannot be mixed. It is prohibited to mix lubricants from different brands or of different grades, as the production standards of lubricants from different manufacturers are inconsistent. Mixing them may cause damage to the engine. Here is some information about engine oil: 1. Composition of engine oil: Engine oil is the lubricant used in engines, consisting of base oil and additives. 2. Density and functions of engine oil: The density of engine oil is approximately 0.91×10³ (kg/m³). It serves to lubricate and reduce wear, assist in cooling, seal against leaks, prevent rust and corrosion, and provide shock absorption for the engine.