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difference between sae 30 and 5w30

Is Sae 30 the Same as 5w30? [Ultimate Guide]

Engine oils are generally classified according to the SAE class. SAE 30 are monograde oils utilized at temperatures above the freezing point. They hardly have any cold flow property. So, people must opt for SAE 30 only in summer, autumn, and spring.

5w30 could be defined as a motor oil used widely in diesel and light-duty petrol engines. Like all the motor oils manufactured in recent times, 5w30 is also multi-grade. In other words, it can function at a low viscosity rate say 5 to a high viscosity rate say 30.

The following write-up specifies the difference between SAE 30 and 5w30. Please check it out now.

Is sae 30 the same as 5w30?

SAE 30 and 5w30 are not the same. SAE 30 is single-grade. In other words, it is rated once at an extremely high temperature. The temperature rating lies in the middle somewhere at 30. 5w30, on the other hand, is multi-grade and has two ratings. At a high temperature, it has a rating of 30, and at a low temperature, it has a rating of 5. The low temperature is marked as ‘w’ that stands for winter.

What’s the difference between 5w-30 and SAE30?


SAE 30 oil is high-quality, and it has impressed larger segments of the population. It ensures proper performance and fit so that you can maintain the service life of your equipment. Whereas, 5w30 is capable of running a wide range of engine types. It can retain safe viscosity even when the engine is working hard in scorching heat

Workable temperature:

5w30 vs SAE 30 – when finding the differences between these two engine oils, you must take into account workable temperature.

SAE 30 has only one viscosity rating (30) and it works seamlessly at a temperature of one hundred degrees. Whereas, 5w30 can function between -30 degrees Celsius and 35 degrees Celsius.

Can you use sae 30 instead of 5w30?

You cannot use SAE 30 instead of 5w30 as the latter is much more advanced than the former. As mentioned above, 5w30 has viscosity ratings but SAE 30 has only one. 5w30 can operate in both low and high temperatures but SAE 30 can operate only in high temperatures.

So, Can You use 5w30 instead of SAE 30?

Yes, you can use 5w30 instead of SAE 30 in some engines at times as the 5w30 is a much more advanced formulation and has viscosity ratings as well.

What can happen if you put SAE 30 instead of 5w30?

If you put SAE 30 oil instead of 5w30, you will certainly encounter the below-mentioned three problems.

Jammed operation:

5w30 is utilized in motors with multi-viscosity ratings. The oil is specially formulated for complex motors that take care of advanced applications. The oil can also function in the winter season. But if you use SAE 30 in place of 5w30, the operation will surely falter. The motors will be jammed just when the temperature goes down.

Cannot operate in cold temperature:

SAE 30 and 5w30 have two different workable temperatures. The former is fine with high temperature and the latter functions smoothly at all temperatures. 5w30 becomes thin when the temperature drops down. But SAE 30 is not meant to work in the cold. SAE 30 becomes thick when the temperature decreases.

Disruption in viscosity:

If you look at the comparison SAE 30 oil vs 5w30 – both the oils are different. You cannot use SAE 30 in place of 5w30. SAE 30 oil has a single viscosity rating. But 5w30 has multi-viscosity. You cannot replace multi-viscosity oils with single viscosity oils. That causes severe issues.

What is SAE 30 equivalent to?

When it comes to measuring the viscosity, SAE and ISO or International Standards Organization depend on different scales. SAE 10 W and ISO 32 are the same. SAE 20 is the same as ISO 46 and ISO 68. SAE 30 is equivalent to ISO 100.

What is SAE 30 oil used for?

5w30 vs sae 30
Can i use 5w30 instead of sae 30

SAE 30 oil is used in small air-cooled engines. Lawnmowers, tractors, and chain saws have air-cooled engines.

While almost all the modern-day engines in the passenger vehicles use multi-grade oils, you may find a couple of four-stroke gasoline engines such as the ones in old cars, motorcycles, and power boats that rely on SAE 30.

SAE 30 oil is best for 2 stroke and 4 stroke diesel engines. Before you put SAE 30, please go through the required diesel engine industry categorization such as API CF-4 or API CK-4. This must be written on the bottle.

What is 5w30 oil used for?

5w30 oil is used widely in vehicles with diesel and light petrol engines. If you live in a colder region and have to drive at low temperatures, you should put 5w30 in your car. In that way, your engine will perform proficiently and also last for a prolonged period with little or no maintenance.

What can you use instead of 5w30?

What can you use instead of 5w30 engine oil? 10w30 oil is thicker than 5w30. It has a high viscosity rating and works best in low temperatures. 10w30 will flow slowly during the winter season. Thick oils or oils with high viscosity have a much better seal than the oils with low viscosity. 10w30 also lubricates engine and motor parts efficiently.

What can you use instead of SAE 30?

You can use 5w30 instead of SAE 30. Both the engine oils have a viscosity rating of 30. This means 5w30 flows in the same way as SAE 30 at a particular operating temperature.

According to API, all engine oils must be compatible with each other. This means you can easily mix all SAE grade engine oils.  However, you cannot mix SAE 30 with any multi-grade oils like 5w30 and 10w30.

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Bottom Line

As evident from the above discussion, SAE 30 oil and 5w30 oil are not the same. They have plenty of differences. SAE 30 has a single viscosity rating while 5w30 has two viscosity ratings. Their applications and workable temperatures also vary. While SAE 30 works great in normal and high temperatures, 5w30 ensures amazing performance when the temperature falls. Thank you for reading.

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