Clean VS Dirty Engine Oil – The Key Differences


All drivers want what’s best for their car, but sometimes it’s hard to know what products on the market are actually beneficial and which ones are just a waste of money. When it comes to engine oil, there are two main types – clean and dirty – but which one is actually better for your car?

In this blog post, we’ll explore the key differences between clean vs dirty engine oil so that you can make an informed decision about which one to buy for your own vehicle. 

Check Out the Primary Differences:

  • One of the main differences between clean and dirty engine oil is the way that each type of oil is made. Clean engine oil is made through a process of distillation and refinement, while dirty engine oil is made from crude oil that has been extracted directly from the ground. Because of this difference in production methods, it’s generally accepted that clean engine oil is of a higher quality than dirty engine oil. 
  • Another key difference between the two types of engine oil is their viscosity. Viscosity is a measure of an oil’s resistance to flow, and it’s important because it can affect an engine’s performance. In general, clean engine oils have a higher viscosity than dirty engine oils, which means they’re better at protecting engines from wear and tear. 
  • Finally, clean engine oils also typically contain fewer impurities than dirty engine oils. Because they’re made through a more refined process, clean engine oils are less likely to contain things like dirt, metal shavings, or other contaminants that could damage your car’s engine. 

What makes the engine oil a good one

When it comes to engine oil, there are a lot of factors to consider. Thickness, viscosity, and additives all play a role in determining how well an oil will perform. However, the most important factor is how well the oil protects against wear.

  • Engine oil is constantly heated and pressurized as it circulates through the engine, and over time this can lead to metal surfaces grinding against each other.
  • Additives help to reduce wear by forming a protective barrier between these surfaces, and the best oils are formulated to provide maximum protection.
  • In addition, the good engine oil will also have excellent dispersal properties to keep soot and other deposits from clogging up the engine.

By carefully considering all of these factors, you can ensure that your engine will stay healthy for years to come.


When it comes to choosing between clean and dirty engine oil for your car, it’s important to consider all of the key differences between the two types of products. In general, clean engine oil is a higher quality product that will better protect your car’s engine from wear and tear.

However, dirty engine oil is usually less expensive than clean engine oil, so it may be the right choice for drivers who are on a budget. Ultimately, the decision about which type of oil to buy for your car depends on your individual needs and preferences.

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