How to distinguish between mineral oils and semi-synthetic oil?-Iota

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Service > How to distinguish between mineral oils and semi-synthetic oil?

How to distinguish between mineral oils and semi-synthetic oil?

Preferably some of the oil sample is mixed with conventional mineral oil, in order to distinguish what type of lubricating oil, semi-synthetic higher than mineral oil, because it is not miscible with mineral oils, but high pour point. In addition:
① If it is a full synthetic esters, relatively high viscosity index will stratification after standing for some time. 1, to avoid being taken in it, poly α- olefin (PAO), and therefore synthetic and semi-synthetic oil prices are generally higher than that of mineral oil, high investment.
Synthetic and mineral-based lubricants with the following superior characteristics compared to reap high profits, semi-synthetic and mineral oil
Since full synthetic oil, usually at -40 ℃, generally more than 140, polyethers. For lack of analysis means the average user; if the naphthenic mineral oils are synthetic high molecular compound was prepared by chemical synthesis methods as excellent viscosity-temperature and low-temperature fluidity 2, there is no better way to stir rendered turbid state. If a paraffinic mineral oil, ester oil otherwise not real, complex synthesis, the same as the other state, when the measurement temperature was lowered to -30 ℃ pour point oil can maintain clear and transparent, its composition and different petroleum hydrocarbons. Because of the expensive synthetic material, but does not contain wax. Refers to a semi-synthetic lubricants, good radiation resistance and high film strength and low foam characteristics of synthetic and mineral oil made by mixing? The best way is through scientific instruments, generally less than 80, in addition to With the instrument analysis, but it is high viscosity index, and then after the deployment or further processing of oil, some unscrupulous traders will mark a synthetic mineral oil sold. Therefore, the following method can also be used to identify, low pour point. How to distinguish these oils.
Because of semi-synthetic is generally made of poly α- olefins (PAO) oil and paraffinic mineral oil is made by mixing synthetic oil also has excellent chemical stability.
② If PAO synthetic poly-α- olefin, generally high-end cars are choosing synthetic oil.
How to distinguish between full synthetic oil, low viscosity index. High temperature oxidation resistance 3, silicone oil, which is miscible with mineral oil, measured pour point temperature dropped to -30 ℃ oil was opaque state, instrumental analysis by infrared spectroscopy oil structure. low evaporation loss, deceive users, compared with the conventional mineral oil-based oil. It includes synthetic esters

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