Oil vs Oilless Air Compressor: The 5 Differences That Matter

FramingNailersGuide is reader-supported. If you buy an item through the links on this site, we may earn a small commission at no extra cost to you. Learn more

Last Updated on April 1, 2021 by John Patterson

Oil vs Oilless Air Compressor

Choosing the right compressor for your workshop chores depends on many parameters. And the oil and its relevance play a vital role here.

However, there are two types of air compressor based on the oil-filling mechanism

#1. Oil-based air compressor and
#2. Oilless air compressor/oil-free compressor

And as you’ve landed on this page, we assume you’re confused between oil vs oilless air compressor.

So, which one is better? It depends on several variables.

In the first place, it depends on what type of work you are going to do with the aircompressors. Oilless compressors are more of amateur and irregular uses, and oil compressors are for the heavyweight, industrial chores.

So, both can be the cup of your tea to some extent, but you have to choose according to your needs. Make a list of your jobs that you are going to do with an air compressor. Once you can finalize the task list of the compressor, it’s almost done.

Are you done with the list?

Let’s move to the next section to breakdown the oil vs oil-free air compressor and decide the right one for you.

Oil vs Oilless Air Compressor: Comparison

In this oil vs oilless air compressor guide, we are recommending the two best air compressors for your projects.

Preview
Best Oil Air Compressor
Metabo HPT Air Compressor, 4-Gallon, Electric, Twin Stack, Portable,...
Best Oilless Air Compressor
BOSTITCH Pancake Air Compressor, Oil-Free, 6 Gallon, 150 PSI...
Title
Metabo HPT Air Compressor, 4-Gallon, Electric, Twin Stack, Portable,...
BOSTITCH Pancake Air Compressor, Oil-Free, 6 Gallon, 150 PSI...
Editor's Rating
4.9/5
4.9/5
Prime Status
Best Oil Air Compressor
Preview
Metabo HPT Air Compressor, 4-Gallon, Electric, Twin Stack, Portable,...
Title
Metabo HPT Air Compressor, 4-Gallon, Electric, Twin Stack, Portable,...
Editor's Rating
4.9/5
Prime Status
Best Oilless Air Compressor
Preview
BOSTITCH Pancake Air Compressor, Oil-Free, 6 Gallon, 150 PSI...
Title
BOSTITCH Pancake Air Compressor, Oil-Free, 6 Gallon, 150 PSI...
Editor's Rating
4.9/5
Prime Status

The oil air compressor

oil air compressor

This type of air compressor is most favorable, no doubt. But is it really for you?

Let’s have a look at the pros and cons to find out the answer-

What We Liked
    • Cast-iron metal and extra metal sheet are used to make it durable
    • Made to use for commercial purposes.
    • The oil-lubricated compressor can serve you for long hours.
    • Less noise, so, not bother others.
    • Reliable performance.
    • No heat issue found while using it regularly.

What We Didn't Like
  • The oil-lubricated compressor require regular maintenance.
  • The price tag is very high.
  • Lots of parts are used

An oil compressor is a heavy-duty compressor, which is mainly used for industrial and commercial purposes. Let’s have a look at their features and benefits-

Strong Built Quality
An oil air compressor is usually made from cast-iron and has a new metal shield to protect its body. So, if something hits the compressor, it will not break easily.

So, these are reliable and last longer. If you are going to use an air compressor for a long time, then an oil-air compressor is the best choice.

Less noise
The oil compressor creates less noise. If you live in a populated area, then less noise is preferable. Because you will not get any complaints regarding noise.

Powerful
Bigger models need more power. An oil compressor is more significant than an oilless compressor. So, it takes more power.

It takes more power to complete a big task. This is a powerful tool that is used for commercial and industrial jobs. Those jobs are heavy indeed. So, you have to have powerful air compressors to complete this job.

In that case, an oil compressor is the only alternative to an oil compressor.

Lasts Longer
The oil compressors last longer. Thanks to its heavy-duty metal body.

Though the metal body makes it heavier, it is well protected. And it is not a problem for industrial use.

You can do all compressed air work with oil-air compressors. There is no limitation like oil-free compressors.

So, you are getting all the jobs done and a longer lifespan from oil-air compressors.

Performance
It can withstand any severe condition and serve you. You need regular maintenance and changing the oil. You will not face any hassle to use it.

You can use oil-air compressors the whole day without getting any heating issues on break.

Weighty product
This is a summary of the oil-air compressors. Uses, lifespan, portability, and durability are the primary concern from my point of view. What do you think?

Yes, you should think about that if it can serve your purpose or not. And then those factors. So, move to the next section to know about the oil-free compressors and you will able to make your decision.

Our Recommended Best Oil Compressor on Amazon:

Sale
Metabo HPT Air Compressor, 4-Gallon, Electric, Twin Stack, Portable,...
68 Reviews
Metabo HPT Air Compressor, 4-Gallon, Electric, Twin Stack, Portable,...
  • MOTOR: 15 Amp direct drive induction motor for...
  • PUMP: Cast iron, oil lubricated pump for cooler...
  • LIGHTWEIGHT: Only 52.9 lbs for easy jobsite...
  • REGULATOR: Locking regulator ensures the proper...
  • GAUGES: Industrial air pressure gauges, encased in...

The oilless air compressor

oilless air compressor

What We Liked
    • Oil free air compressors are ideal for home use.
    • The lightweight design makes it portable.
    • Small in size requires less space.
    • Oil-free air compressor affordable in price. This is great for DIY-ers.
    • Fewer amounts of parts are used to make it.
    • Quality air to use in sensitive places, such as the food processing area.
    • Require less maintenance.
    • Oil free compressor require less power to operate.

What We Didn't Like
  • It is very noisy.
  • Get hotter quickly
  • It can breakdown with a single hit.

What do you think about the term “oilless”? The term oilless is a bit confusing here. It doesn’t mean that it can run without oil. Yes, it still uses oil. But the oils are set and sealed by the manufacturer. That means no oil can evaporate or escapes by other means.

You don’t have to add oil for its lifetime. That’s it. Isn’t it simple?

Let’s have a look at the features and benefits of oil-free compressors-

No maintenance
Compared to oil-air compressors, it requires no maintenance. Its oilless function minimal the maintenance need.

So, you are getting less hassle to maintain.

Cost-effective
Oil-free air compressors are made for home uses and DIY-ers. And fewer parts are used to make it. There is no extra metal protection. That makes it affordable in price tag.

It is a great advantage for homeowners and DIY-ers as they are not going to heavy use with air compressors.

Related Reading: Air compressors Price

Portable
If you are working on small projects in various places, you should have the portability option.

The oil-free compressors are lightweight. So, it is easy to transport from one place to another.

High Quality of air
This is an oil-free model. There is some sensitive area where the air compressor is used. Such as the food processing area. There you can’t use an oil-air compressor. Because it can release oil with compressed air. Though it is very negligible but not acceptable in a food processing area.

So, oilless air can help you in this regard. Because it does use oil, but the oil is in sealed condition. And its air is free from any harmful objects.

This is a summary of oil-free compressors. You may now understand the term oilless and its uses. You can get this if it matches your requirements.

Our Recommended Best Oil-free Compressor on Amazon:

Sale
BOSTITCH Pancake Air Compressor, Oil-Free, 6 Gallon, 150 PSI...
  • The portable air compressor has a long-life...
  • 150 max PSI 6.0 gallon tank (22.7 L) and 2.6 SCFM*...
  • BOSTITCH high efficiency motor of the 6 gallon air...
  • 78.5 dBA** operational noise level for a quiet...
  • 29 lb. weight makes unit easy to carry and store

Are you still confused? Well, read the below section for a head-to-head comparison. I think it will make stuff clear to you.

Oil vs Oil-Free Air Compressor

Size

Oil compressors are more significant compared to oil-free compressors. And that is why it is more powerful. But not portable.

On the other hand, the oilless one is small and requires less space. You can quickly move it to your project area if you want.

Winner: It is depending on your need.  Are you a heavy user and going to do jobs only in one place? If yes, then go for the oil otherwise oilless is best for you.

Cost

We know that oil is more significant and influential. That’s why it is pricier. The minimum price of an oil-air compressor is $600.

On the other hand, an oil-less air compressor can be found at only $200. Surely it is a low price regarding its versatile works.

Winner: If you compare the price, then oilless is the winner for sure. And if you compare price with type work, then the oil compressor is the winner.

Type of job

What kind of air tool are you going to use?
That is the prime concern. Oil-free compressors can run two nail guns simultaneously. And as I told you previously, it is ideal for home applications.

And the oil-based air compressors are for industrial, such as for construction jobs. Are you a professional in such a job? Then it is for you.

Winner: It also depends on your job type. So, choose according to your job type.

Build-quality

The oilless compressor can break down quickly, and it does by the single metal hit. As it is built with fewer parts, it happens for that reason.

Comparatively, oil-based is made from cast-iron with other metal to protect. Thus, it is durable and excellent in build-quality.

Winner: No doubt, an oil-air compressor is a winner.

Uses of power

Oil-based is more considerable and works more big jobs than oilless. So, it will require more power comparatively oilless. Though air compressors are power-hungry machines. It is just a comparative discussion.

Winner: Less power is the winner. So, the oilless compressor is the winner.

Frequently Asked Questions 

Question #1: How do oil-less air compressors work?

Answer: Oil-free compressors bring air from outside via an unloaded valve, and the air is filtered through an inlet air filter. Then the air compressed and stored in the tank.

Question #2: Do compressors need oil?

Answer: Of course, an oil-based air compressor needs oil. But oil-free compressor doesn’t need to add oil from time to time. The oilless is pre-lubed for its lifetime.

Question #3: What oil should I use in my compressor?

Answer: If you own an oill-free compressor, then there is no need to add or change the oil.

But for an oil compressor, non-detergent, 20 weights or 30 weight oil is recommended.

Question #4: Can you use motor oil in an air compressor?

Answer: Most of the motor oil is a detergent type of oil. It is because of the safety of engine parts to prevent deteriorating. But the air compressor works differently. Detergent oil will cause additive to build up pistons. So, avoid such oil to use.

Question #5: How often should you change compressor oil?

Answer: There are two types of air compressors based on the mechanism, Rotary and reciprocating.

You need to change the oil every 8000 hours if it is a rotary screw air compressor. And for the other kind, you should change every 120 days.

In Conclusion

So, you may now well educate about oil vs oilless compressors.

No matter which type of air compressors you are going to choose. Make sure that it can fulfill your demand.

Lots of people around us are choosing the wrong product because of a lack of knowledge. They found that they are wrong after using the product.

So, it is better to get a clear concept about the oil vs oil-less air compressor and also the product you wish to purchase.

I hope all the above information can help you to find the right type of product.

Both types are great for finishing the job accordingly.

If you have still confusion about the topic of oil vs oilless compressor, let us know by commenting here.

About the author

John Patterson

Hi there! My name is John Patterson. I’m a meticulous guy who loves to deal with the perfect tools for various needs. No matter if it’s a woodworking tool or gardening tool or anything else, I don’t compromise the quality and usability. Since 2010 I’ve been testing different tools for different DIY and professional tasks. Later in 2015, I decided to share my knowledge with the world. I started by answering people in the forums and several Q/A sites like Quora. Then I founded this blog to aid others like you with my knowledge and experience.