Semi-synthetic

Semi‑synthetic is a type of motor oil whose composition combines synthetic base oils and traditional mineral ones, providing better protective action than pure mineral oils while remaining economically advantageous. Such oils are suitable for heavy‑duty and passenger diesel engines that require standards E7, E9 or E11, and are often recommended by manufacturers for medium‑high mileage. When choosing a semi‑synthetic oil, you should focus on viscosity, for example 10W‑40, 15W‑40 or 20W‑50, according to the manufacturer’s recommendations and the climate conditions of operation. This technological approach provides stable protection against wear, oxidation and deposit formation, making it an optimal choice for vehicles that operate under high load.