Should You Mix Synthetic Oil with Conventional Oil?

Synthetic lubricant is one of the best-rated base oils today. However, its cost is quite high. In contrast, conventional lubricants consume less expense but their quality cannot compare. Therefore, many people have raised the question "can synthetic oil be mixed with conventional oil?".

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Mixing synthetic oil with conventional oil is an idea that many people are interested in

1. Definition of synthetic oil and conventional lubricant

1.1 Synthetic oil

Synthetic oil contains a more highly refined base oil compared to conventional oils. It is synthesized from hydrocarbons in crude oil and possesses predetermined superior properties: non-flammable and water-insoluble.

As a result, synthetic oil offers excellent lubrication capability, perfectly protects engine components, optimizes performance, and effectively saves fuel.

1.2 Conventional oil

Alongside synthetic oil, conventional mineral oil or mineral base oil is also very common, especially before synthetic oil appeared.

However, because it is difficult to completely remove impurities, it is less environmentally friendly, and its lubrication efficiency is inferior, this type of oil typically has a very affordable price. It is also recommended for older vehicles to save costs or for new engines or low-power engines.

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Synthetic oil has a higher cost compared to conventional oil

2. Debate surrounding oil mixing

Since both are made from crude oil and differ in purity levels, the question "can synthetic oil be mixed with conventional oil?" has been raised. Opinions suggesting this is entirely feasible have pointed out the following advantages when combining them:

• Cost savings: this obvious advantage cannot be denied. Combining mineral and synthetic oil creates a new product with all the strengths of both types of lubricants: high quality at a reasonable price. In fact, current lubricant manufacturers have already supplied semi-synthetic oil products based on this idea.
• Increased efficiency: if you are using conventional oil, adding synthetic oil to improve performance seems very feasible. As mentioned, synthetic oil has excellent lubrication capability, anti-wear properties, enhanced performance, reduced heat load, and more—sufficient to improve the quality of mineral base oil. However, the effectiveness of this blending depends on the mixing ratio in the formula and whether the selected