Synthetic oil is made up of artificially created chemical compounds, while regular motor oil is derived from crude oil and contains additives to enhance its properties. The differences in composition and molecular structure can lead to incompatibility between the two types of oils.
Adding regular motor oil to synthetic oil can alter the viscosity and other characteristics of the synthetic oil, potentially reducing its effectiveness and compromising the engine's performance and protection. Mixing the two types of oils can also result in the formation of sludge and deposits within the engine, which can lead to reduced engine efficiency and increased wear and tear.
It is always advisable to use the type of oil recommended by the vehicle manufacturer and to avoid mixing different types of oils unless specifically recommended or approved.
