Can Engine Oils with Different Viscosities Be Mixed?

1 Answers
OAriana
07/25/25 8:12am
Engine oils with different viscosities should not be mixed. Relevant information is as follows: Principle: If two engine oils with different viscosities are mixed, although the lubricating properties remain unchanged, the composition of the oil will change. Mixing them can degrade the performance of the oil and may even cause damage to the engine. Therefore, it is not recommended to mix engine oils with different viscosities. Function: Engine oil serves to lubricate and reduce friction in the engine. Engine oil consists of two parts: base oil and additives. The base oil is the main component of the lubricating oil, determining its basic properties, while the additives compensate for and improve any deficiencies in the base oil's performance, making them an essential part of the lubricating oil.
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