5w30 vs 10w30 Motor Oil : Which Motor Oil Is Better

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There are different variety of motor oils. Genuinely, finding the right oil for your vehicle can be a head-scratching experience as there are multitudes of them in the market. You will be finding motor oils that fall under four main categories.

We are going state the categories here. We will instead talk about the most common kinds of oils that come under particular categories. However, 5w30 and 10w30 is widely used two sorts of motor oils.

Here, we will put down the essential ideas of the oils. Also, we will address the dispute of 5w30 oil vs 10w30 oil. Read on to build a thorough understanding of these two motor oils. As a result, you will be able to identify the best engine oil by the end of the article.

Essential Ideas

Before getting into any technical discussion of the motor oils, we want to clarify a few details. For instance, ‘W’ stands for ‘winter rating.’ In addition, these oils are prominent for their multi-grade capability. In other words, they will perform the same regardless of the changes in the temperature.

Viscosity is the technical form of expressing the thickness of oils. The first number in the name of the oil indicates viscosity. And the second number specifies the suitable temperature for the viscosity.

How Is 5w30 Motor Oil

How Is 5w30 Motor Oil

As it’s a multi-grade oil, it can adapt to both cold and warm weather conditions. The viscosity is lower of 5w30 vs 10w30 oil. 5w the most suitable oil for -30 degree Celsius or -22 degree Fahrenheit weather. 50w is the leading name among motor oil recommendation.

We talk about the temperature ranges more in the comparison portion. Anyway, light vans, SUVs, Passenger cars with supercharged engines, or high-performance turbocharged engines- can run on this oil.

Since this oil is less thick, it’s the best suit for a cold temperature country. Countries like Canada, Northeastern United States have a colder climate. For its lower viscosity, engine parts can move freely.

You will see experts advise using this oil at higher temperatures as well. It’s because 5w30 can maintain a consistency that is almost identical to 10w30. So you can say- this oil can be a reliable option to use in summer. Still, 5w oils will serve your best in lower at a lower temperature.

  • Best for occasional driving
  • Best kind of oils to use in a colder climate
  • Provides protection for light-duty engines
  • Sealing power is not as excellent as 10w30
  • Not the best suit for a vehicle in a hotter climate
  • Might not serve best for frequent driving and heavy-loaded vehicles

How is 10w30 Motor Oil

How is 10w30 Motor Oil

10w oils have more viscosity in relation to 5w oil. We have already mentioned in a preceding section, and the first number indicates the viscosity or thickness of oils. And, you can see clearly, the thickness is double of 10w30 vs 5w30 oils. Although the last digit shows, it can be used in lower temperatures; it’s not the best suit for colder weather like 5w30 oils.

10w30 oils can be used in heavy-duty commercial vehicles. Any larger and more potent engine that can handle thicker oils can run on 10w30. 10w oils are also suitable for bio-diesel engines. Furthermore, 10w oils protect older engines better with its excellent sealing capability.

  • Great sealing power
  • Protect older engines
  • Serves best the heavy-duty vehicles
  • Best for the vehicle in a hotter climate
  • Most suitable for frequent stop-and-go
  • Don’t perform as good as 5w30 in colder weather

5w30 vs 10w30 Comparison- What are the Differences Between them

The initial discussion in the above contains the nature and application of the oils. Now, we will specify the aspects in which these two types of oils vary from each other.

Changes In Thickness For Temperature: In the lower temperature, the thinness decreases of 5w30 vs 10w30. In contrast to that, 10w30 oils become thicker in relation to 5w30 oils at a lower temperature.

Then again, 5w oil’s thinness will increase at a higher temperature. In opposes to that, the thickness of 10w30 will decrease in higher temperatures.

Difference In Viscosity: You have seen how they change depending on temperatures. But naturally, the 10w30 vs 5w30 is viscous. In comparison to 10w oils, 5w is less thick or viscous in nature.

Temperature Range: 5w30 oils will work best from -30 degree Celsius to -35 degree Celsius. On the other hand, 10w30 will only from-18 degree Celsius to -30 degree Celsius.

Vehicle Compatibility: 10w30 oils are only for high-hauling commercial vehicles. In contrast to that, you can run stronger and weaker engines, both with 5w oils. Yet, you will see people suggest using it chiefly in light-duty petrol and diesel engine.

Efficiency Of Uses: 5w30 is the best choice at the starting period of winter. For 10w, tropical areas are the most compatible. Feel free to user 10w30 in the scorching heat of summer.

5w30 vs 10w30 – Frequently Asked Questions

Q: Are the 5w30 and 10w30 synthetic oil?

Ans: Yes, they are synthetic. As they fall under the multi-grade category, they have to be developed with artificial chemical components.

Q: How do I know which oil my car is compatible with?

Ans: You can simply consult the owner’s manual to learn what oil you should use in your vehicle. If you don’t have the manual at hand, you can seek help from customer care.

Q: What is the viscosity of a 5w oil?

Ans: The consistency of 5w30 is 100 degree Fahrenheit at 104 degree Fahrenheit. Or, it’s 38 degree Celsius at 40 degree Celsius.

Q: Do both oils have the same high mileage?

Ans: Yes, they do.

Q: Is the additive for 10w30 is same for 5w30?

Ans: Yes.


The core difference between them is the capability to flow at a lower temperature. Otherwise, 5w30 and 10w30 are the most used motor oils from the shelves of fuel shops. Despite having some drawbacks, they are efficient in their specific ways.

That’s all for now. Hope to see you soon with many more.

Stay safe!

S McCurdy

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