Difference Between 5W-20 and 0W-20

Nowadays, diverse types of engine oil are available in the market. The 5W-20 and 0W-20 are two different crude oil used for the engines.

Both 5W-20 and 0W-20 offer many benefits and advantages to the engine. They both have distinct differences and slight similarities.

Since engine is the primary part, the oil needed to choose correctly.

5W-20 vs 0W-20

The main difference between 5W-20 and 0W-20 is that the 5W-20 is a thinner oil, while the other hand, 0W-20 is a thicker oil. But both of them are multi-grade crude oil used for engines.

5W 20 vs 0W 20

5W-20 is an engine crude oil. It has a very low viscosity. 5W-20 oil is best appropriate for cold temperatures or low temperatures. 

For engines which use light petrol and gasoline, 5W-20 will be suitable.

It can help with many issues faced by the engine. It solves the tear and wear problems and provide lubrication for better driving.

Since it is best for cold temperatures, the 10W-20 using as an alternative for high temperatures. 

0W-20 is also called winter SAE (Society of automotive engineers) oil. The SAE is a rating system that provides a rating by viscosity.

0W-20 is a winter multi-grade oil. It is best suitable for cold temperatures. 0W-20 provides stunning performance for the start-ups of the vehicle during extreme cold conditions. 

0W-20 is a thinner oil with a thin density. The light viscosity made the 0W-20 flow smoothly in the engine.

The 0W-20 provides lubrication for the engine parts.

Comparison Table Between 5W-20 and 0W-20

Parameters of comparison5W-200W-20
Stable5W-20 is less stable0W-20 is more stable
Viscosity5W-20 has a thicker viscosity0W-20 has a thinner viscosity
Viscosity indexThe Viscosity index of 5W-20 is 173The viscosity index of 0W-20 is 120
FlashpointThe flashpoint of 5W-20 is 224 degrees CelsiusThe flashpoint of 0W-20 is 230 degrees Celsius
ClimateExtreme Winter and Moderate SummerModerate Winter and Summer

What is 5W-20?

5W-20 provides superior performance while start-ups during low temperatures. It makes obstacles-free form and flows freely to the engine from the oil pan.

Most truck drivers prefer 5W-20 for their conveyances. 5W-20 is a thinner oil that is a significant advantage for vehicles running in cold temperatures.

The 5W-20 oil makes less friction and provides a smooth flow for the engine parts. This process significantly saves energy and fuel consumption.

So, we can say 5W-20 has more remarkable fuel efficiency.

5W-20 has many benefits, but it cannot be used until the manufacturer or mechanic recommends it.

Sometimes we see the benefits, and sticking to it will end in the wrong oil for the wrong vehicle.

So, it is better to get advice from the manufacturer or mechanics. The faulty oil will damage the entire parts of the conveyance.

5W-20 oil is reasonable for passenger cars, gasoline engines, and light trucks. In those vehicles, 5W-20 provides high fuel efficiency.

The 5W-20 oil is present in both conventional and synthetic variants. By adding several additives to the crude oil, the 5W-20 conventional variant is produced.

The 5W-20 synthetic variant is produced from synthetic base oil. The 5W-20 synthetic oil will manage even in hotter climates.

It can help the engine to handle extreme climate conditions. And make the engine clean.

Synthetic oil is a long-lasting oil comparatively. It is also available in synthetic blend oil.

Synthetic blend oil is cheaper than synthetic oil. But it also gives better protection.

What is 0W-20?

0W-20 is flowing easily without causing frictions. In high temperatures, the 0W-20 will handle the engine. And it provides lubrication to the parts of the vehicle.

Even 0W-20 oil is not a thick viscosity oil that can handle seasonal climates. It is an alternative for modern petrol and gasoline-engine cars.

0W-20 oil is a perfect choice for colder climates and daily usage. 0W-20 oil is not good engine oil for two-wheelers and aviation vehicles.

The 0W-20 will remove the engine deposits and make a smooth path for flowing.

0W-20 oil offers reasonable mileage and better fuel economy for old engines. It has two types. Conventional and synthetic.

The synthetic 0W-20 will provide better mileage. Synthetic oil also helps in breakdowns.

Depending on the engine, you need to add additives and use high mileage oil. 5W-20 and 5W-30 oil are used as alternatives for the 0W-20 oil.

These two also have similar benefits. Pennzoil, Mobil, Amsoil, Castrol, Liqui Moly, Idemitsu, Royal Purple, Valvoline are popular selling brands of 0W-20 oil.

Vigorous additives are added to the 0W-20 oil to make it strong base oil. 0W-20 oil is popular for its grade, and it is recommended for auto manufacturers.

Technical growth will lead to the use of 0W-20 oil for most vehicles. The changes in the motor world will continuously put stress on finding a new oil for moving forward.

Hybrid vehicles, direct injection, cylinder deactivation have new technology with different engine forms.

Main Differences Between 5W-20 and 0W-20

  1. When compared to 5W-20, 0W-20 has better performance in cold conditions.
  2. When compared to 5W-20, 0W-20 has better fuel economy.
  3. 5W-20 is a thicker oil, whereas 0W-20 is a thinner oil.
  4. 5W-20 is equivalent to SAE 5W, whereas 0W-20 is equivalent to SAE 0W.
  5. When compared to 5W-20, 0W-20 will flow better.


The engine is the primary part of the vehicle. It needed to maintain with care. Engine corrosion and blockage are severe concerns that need to be handled immediately.

The engine cruse is one thing which helps the engine to overcome many problems. 5W-20 and 0W-20 will provide lubrication and prevent blockage.

They have diverse benefits and features. They work in cold temperatures.

The engine can get better performance with these types of crude oil. The ‘W’ in the term refers to the winter.

You need to select the correct crude oil for the engine by consulting the manufacturers and mechanics. The wrong oil will damage the parts and affect the engine.


  1. https://ieeexplore.ieee.org/abstract/document/1234892/
  2. https://www.tandfonline.com/doi/abs/10.1080/05698198308981493
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