5W-30 and 5W-20 Motor Oil – Which is best for your car?

5W-30 & 5W-20 motor oils are very common and are used by a majority of cars being that they are very compatible with a wide range of engines.

5W-30 and 5W-20 Motor Oil

5W-30 and 5W-20 Oil – As a car owner, maintaining and taking proper care of your car is necessary if you really want to get the best out of it. One of this necessary care routine is changing oil when required.

5W-30 and 5W-20 motor oils are very common and are used by a majority of cars. The reason for this is that they are very compatible with a wide range of engines and whether it is hot or cold temperature they will still function fine.

However, if you must distinguish them, a 5W-30 oil will do better in warmer climates while the 5W-20 oil is more appropriate for colder temperature. But just as we pointed out earlier, both of them will still do well for your engine no matter the temperature or climate.

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Difference between 5W-30 and 5W-20

The major difference between the 5W-30 and 5W-20 motor oil is their viscosity level. The 5W-20 has less viscosity than the 5W-30. What this implies is that when you use the 5W-20 oil for your car, it will cause less friction with various engine parts such as the crankshaft, valvetrain, and pistons. This can also improve fuel efficiency.

Due to the fact that the 5W-20 oil is not too thick, the oil pump can easily transfer it from the oil pan to the rest of the engine. This is the reason why the 5W-20 is more appropriate for colder climates because its thinner nature allows it flow easily on start-up.

On the other hand, the 5W-30 oil is more appropriate for warmer climates due to the fact that it has a higher viscosity level. This thickness level helps it to stay intact and not break down even in extreme warm temperatures.

And in such a situation, your engine will be the happier for it. If put under the same high temperature, the 5W-20 oil due to its thinner nature and less viscosity may break down quickly.

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What is the difference between single grade and multi-grade oil

Single viscosity oil is one that is more appropriate for or one that is better off used in a particular climate or during a particular weather. There are single viscosity oils that are best for cold weather and there are others that are best for hot weather.

For instance, you could use a particular one during the fall and winter and another for spring and summer.

Multi-viscosity oil on the other hand, is one that is can function very well in various temperatures and climates. It is still one of the best choices of motor oil for cars.

Multi-viscosity motor oils contain special additives referred to as viscosity improvers which makes the oil adequate for any temperature.

These viscosity improvers would expand as the oil heats up, thus making the oil have more viscosity level at higher temperatures and when the oil cools, the viscosity improvers would shrink allowing the oil to get thinner and become more appropriate for a cooler temperature.

What Does Oil Additive Do To An Engine

As we already pointed out, additives are included in the motor oils by the manufacturers so as to make the motor oil function properly with regards to the lubrication of the engine no matter the weather.

However, the additives are not just for the enhancement of lubrication purposes but to also clean and protect the engine.

This is achieved through the additives cleaning engine deposits from engine parts, preventing rust or corrosion from occurring in the engine, and of course not allowing the oil to break down which can be caused by really high temperature or oxidation.

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Best Oil to Use for Your Car

Bearing in mind all that we have already discussed, you may be wondering the best oil to use for your car. To properly decide this, there are various factors that you have to put into consideration.

In making a decision between 5W-30 oil and 5W-20 oil, you have to realize that there is just a little difference between the two. The 5W-30 oil has a higher viscosity level and is thicker which gives it more edge when used in a higher temperature.

The 5W-20 oil on the other hand has less viscosity and is thinner so it would do better in a colder temperature and can enhance fuel efficiency.

That notwithstanding, manufacturers have put in so much work in their oils that both motor oils can do very well for your engine irrespective of the climate or weather conditions.

For instance Mobil 1 has a lot of multi-viscosity oils that will be perfect for your engine for you to choose from.