0w20 vs 10w30 Motor Oil

If you’re like most people, you have no idea what the difference is between 0w20 and 10w30 motor oil. And to be honest, most people don’t care. As long as their car runs well, they’re happy.

But if you’re one of those people who likes to know exactly what’s going on under the hood of your car, then this blog post is for you! In this article, we will compare 0w20 and 10w30 motor oil and explain which one is right for you.

Why Compare?

The first thing to understand is that there are two numbers in motor oil grades: the “W” and the number before it. The “W” stands for winter and the number refers to the oil’s viscosity or thickness. The lower the number, the thinner the oil and vice versa. So, 0w20 is a thinner oil than, say, 10w30.

The main difference between 0w20 and 10w30 motor oil is viscosity. 0w20 oil is thinner and flows more easily than thicker oils 10w30. However, just because an oil is thinner doesn’t mean it’s better. Thicker oil will protect your engine better in extreme temperatures. So, if you live in a cold climate, you might want to consider using a thicker oil like, say, 10w30.

On the other hand, if you live in a hot climate, you might want to use a thinner oil like 0w20. The reason is that thinner oils flow more easily and help to keep your engine cool.

Viscosity Level:

The viscosity of oil determines how easily it flows. The number before W tells you how the oil will flow in cold weather. The higher the number, the thinner the oil and the slower it will flow in cold weather. The number after W tells you how thick the oil is at high temperatures. The higher the number, the thicker and more viscous the oil will be.

The higher the temperature, the thinner the oil becomes. So it is important to use a high-viscosity oil in the summer, as it will offer extra protection for your engine. Undoubtedly, 0W20 has a lower viscosity. As a result, it is quite thinner both in winter and summer. On the other hand, 10w30 is a higher viscosity oil and will be thicker in both seasons.


Lucas Synthetic High Mileage Motor Oil is compatible with ET racing because it provides the steady viscosity needed. Furthermore, it is excellent for normal highway usage and an ideal oil for high RPM engines. Lucas Hot Rod & Classic Car Motor Oil SAE 10W-30 is good for muscle, showroom, classic, and trophy cars without catalytic converters.

Though it is not recommended to use in the passenger car, it can be a good choice for racing applications. It is compatible with methanol and all racing fuels as well as synthetic and non-synthetic oils.

Performance in Different Weather:

Both the oils are suitable under any weather condition because of their viscosity. But to choose the better one, we need to know the details. In winter, oils tend to get thicker because of the low temperature. So it becomes very difficult to start the engine. If the oil is very thick, then the engine takes a long time to get warm. As a result, the engine might get harmed.

The 0W20 has a lower viscosity level so it is quite thinner winter. So it can pump easily and can start the engine rapidly. On the other side, 10W30 is also thin, but it is thicker than 0W20 in winter. So, 10W30 might take more time to warm the engine up. On the contrary, in summer, oils tend to get thinner because of the high temperature. So if the oil is already thin, then it becomes thinner. The 10W30 has high viscosity level so it is quite thick in summer. So it gives the wearer enough protection. On the other side, 0w20 is thick but it is not as thick as 10W30 in summer.

Hence it becomes thinner with the raised temperature. Therefore, 0W20 is more suitable for the winter and cold parts of the world. So it can be a handy oil for the engine in European regions. On the other side, 10W30 is more suitable in summer and can be a perfect pick if you live in a tropical country. Though 10W30 is not too thick for winter for lubrication and 0W20 is not too thin for summer. So without too much extreme weather, this oil can be appropriate for the engine to give adequate performance.

Deposit Prevention:

Lucas Oil Hot Rod and Classic motor oil provide thicker additive film safety. It is produced with a high standard paraffinic base oil and reinforced with zinc, molybdenum, and phosphorus even under the most extreme conditions. The high amount of zinc provides safety to flat tappet cams, lifters, and pushrods. It develops the film strength between the cylinder wall and piston rings, slows oil burning, and enhances pressure in worn engines.

The special Lucas additives fight against rust, corrosion, and dry starts linked with lengthy periods of non-use. It contains great cold temperature additives to reduce oil temperatures and provides tremendous thermal stability in overheating issues. It provides long-lasting excellent performance by reducing mental fatigue. It is blended with an exclusive additive package that includes lubricity agents and anti-seize agents that control drag like a zero-weight oil and protect metal like a heavy multi-viscosity oil.

Consistent viscosity oil long-lasting Lucas Hot Rod & Classic Car Motor Oil SAE 10W-30 has the license of API SN PLUS which provides extreme temperature deposit safeguard for pistons, better sludge control, and better seal compatibility. Both these high-standard oils have different viscosity and usages. So the consumers must check which engine oil is compatible with their respective cars.


Well, that depends on a lot of factors: the climate you live in, what kind of driving you do, and your engine’s specific needs. But in general, 0W20 is a better choice for winter weather because it has a lower viscosity level, while 10W30 motor oil is better for summer weather because it has a higher viscosity level.

Whichever you choose, make sure to check that it is compatible with your car’s engine! We hope this article helped you understand the difference between 0W20 and SAE motor oil. If

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