Car owners often wonder which oil is best to choose: semi-synthetic or synthetic? When choosing, it is necessary to take into account certain technical characteristics: age, technical condition, make and mileage. Thinking about what is necessary: synthetics or semi-synthetics, you should at least be a little aware of their differences.
Synthetic motor oil for cars is a product of artificial origin, which is obtained from natural gas or in the deep processing of oil. It does not change its properties even with prolonged use and is slightly affected by external factors.
Semi-synthetic oil is obtained as a result of the merger of several bases in a certain proportion.
Mineral oil is a product of natural origin, which is obtained after the distillation of oil and the subsequent purification.
Differences between synthetic and semi-synthetic oil
What does stability mean with synthetic engine oil and what does it mean for a regular motorist? The composition of synthetic oil includes molecules whose performance is being carefully studied.
This leads to high chemical and thermal stability. Therefore, synthetics are not so afraid of low temperatures and overheating, as other oils. This ensures the safe operation of the engine in both winter and summer due to the preservation of the optimal viscosity index at high engine load and high speeds. With this choice, it does not matter what composition the
oil has: synthetics or semi-synthetics.
Chemical stability allows for a long time not to change properties even in the absence of interaction between oil and engine. Semi-synthetics is characterized by high stability in contrast to mineral oil, which is significantly inferior in this. But under certain conditions it is worth making a choice in favor of synthetics, leaving behind disputes about which is better: synthetics or semi-synthetics. If the car has a significant mileage, then refueling the engine is semi-synthetic, as it gives a high degree of carbon monoxide. If
the car is not operated at low temperatures, then in this case, you can safely use semi-synthetics. But it is worth noting that semi-synthetic oil has to be changed more often than synthetic.
Synthetic oil for cars is useful in difficult weather conditions and high temperatures. Moreover, its service life is longer. But do not pay attention to this characteristic, since synthetic oil is not suitable for all cars. Therefore, not everyone will think about which oil is better than synthetics or semi-synthetics. For example, most older machines use semi-synthetic, which is also popularly called mixed. The main difference between oils such as synthetics or semi-synthetics is the molecular composition of their bases. Synthetics are characterized by high thermal and chemical resistance.