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Introduction
Lubricating oil is an essential part of engine maintenance because it reduces friction, prevents wear and tear, and protects components from corrosion. It is often assumed that all lubricating oils are the same, so users select the cheapest product available as long as it fulfills the minimal requirements of viscosity and API rating. The truth is that not all lubricating oils are created equal and there are many common misconceptions about how they work and how they should be used. This paper will discuss several of the most common misconceptions about lubricating oil.
Misconception 1: Higher Viscosity Leads to Improved Protection
It is widely believed that the higher the viscosity of an oil, the better the protection it provides. This is not necessarily true. Higher viscosity lubricating oils are used in engines working in high temperatures or performing very difficult tasks. However, for most engines, using a higher viscosity oil than necessary will actually cause more wear and tear. This is because the thicker oil is harder to move and can cause more friction, resulting in accelerated wear.
Misconception 2: Only the API Rating Matters
The API rating is an essential factor when selecting an appropriate lubricant, but it should not be the only consideration. For example, if the wrong API rating is selected for the application, it can cause serious engine damage or even failure. However, API ratings do not take into account other important factors such as detergent additives and anti-foam agents.
Misconception 3: Longer Drain Time Improves Performance
Some people believe that longer drain times will result in improved performance and fuel economy. This is not the case; in fact, extended drain times can cause engine damage, since contaminants may deposit on the parts of the engine with prolonged oil exposure, leading to excessive wear. Furthermore, oil that has been used for too long can lose its lubricating properties and start to corrode engine components. The optimal drain intervals will vary depending on the type of engine and the conditions in which it operates; however, it is best to stick with the manufacturers recommendations.
Misconception 4: All Synthetic Oils are the Same
Synthetic oils are often assumed to be the same, but this is not the case. Synthetic oils can vary greatly in quality and are typically tailored to specific applications. Generally speaking, synthetic oils are better at withstanding high temperatures and providing reliable protection for long drain intervals; however, their performance can vary depending on the additives and base stocks used.
Conclusion
The proper selection and use of lubricating oil is essential for keeping an engine running smoothly and efficiently. While it is true that some oils are better than others, it is important to understand the underlying principles that govern how they work and how to use them correctly. By avoiding common misconceptions such as those discussed above, users can ensure that their engines are properly lubricated and performing optimally.
