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Oil vs Oil-Less Air Compressor: Which Should You Choose?

oil-vs-oilless-air-compressor

oil-vs-oilless-air-compressor

An air compressor is one of the most versatile tools you can buy. It can help you do everything from filling up the occasional bike tire to turning your garage into a car repair mechanic’s bay.

Air compressors come in two primary varieties: oil air compressors and oil-less air compressors. And it can be very tough to decide between the two of them.

That’s where we come in. We’ve put together an in-depth comparison of oil and oil-less air compressors to help you understand how each one works and what their different pros and cons are. Keep reading to discover the answers to all of your questions!

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Oil Air Compressor

When push comes to shove, most handymen prefer the oil air compressor. That’s partially because it is durable enough and powerful enough for individual handymen and commercial businesses alike. And these compressors tend to be far quieter than oil-less air compressors. If you live in a tight neighborhood or suburb, your neighbors will appreciate you making less noise while using the compressor.

DEWALT Air Compressor D55146

An oil compressor is powerful, durable, and quiet. But it does have some drawbacks, including the fact that it requires more maintenance. But if you’re accustomed to monitoring and changing out the oil on other devices, this shouldn’t be much of a problem.

Additionally, oil air compressors are fairly heavy. This isn’t an issue if you plan to put it in one place and keep it there. But if you anticipate a need to move things around, you may want to go with a lighter compressor choice. Keep in mind, though, there is a tradeoff: the heavy construction is a large part of why oil air compressors are so durable.

Overall, the oil air compressor is a great choice for handymen who have money to spend, who need heavy-duty equipment, and who have enough space for it. For everyone else, though, it’s worth taking a closer look at the oil-less air compressor.

Pros
  • Durable
  • Suited for heavy-duty work
  • Relatively quiet
  • Can easily operate for many hours at a time
Cons
  • Heavy
  • Additional parts to worry about
  • Requires plenty of maintenance
  • More expensive than an oil-less air compressor

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Oil-less Air Compressor

When it comes to an “oil-less” air compressor, the name is not entirely accurate. The compressor arrives pre-lubed, so it is only oil-less in the sense that you don’t personally have to change the oil. The existing lubricant keeps the cylinder working while keeping the pump protected, making the maintenance on this tool surprisingly easy.

California Air Tools 8010 Steel Tank Air Compressor

The actual compressor shape is different for oil-less compressors. Generally speaking, they are smaller and simpler than an oil air compressor, and they weigh much less. And the lightweight nature of the compressor makes it very portable, which is a good choice if you intend to move the compressor in and around your home.

Why, then, do most handymen ultimately prefer an oil air compressor to an oil-less one? While these compressors are lighter in weight, they are far less durable and more prone to damage. And while not changing out the oil is convenient; the relative lack of oil means these compressors heat up more than their oil compressor cousins. That lack of lubrication also makes these compressors likelier to break down during use.

Finally, these compressors have slower motors and are very loud to use. While it is low-maintenance and very portable, these compressors may be very disruptive to your home and your neighborhood due to the noise.

Pros
  • Low-maintenance
  • Lightweight and portable
  • Lower cost
Cons
  • Less durable
  • Likelier to overheat and break down
  • Loud

What Features Should You Look For?

Now you know the key differences between an oil air compressor and an oil-less air compressor. However, once you choose between the two types, there are still a few features you should consider.

Below, we have a brief overview of these features. This should give you a better idea of what you need before you make a purchase.

Horsepower

Every air compressor should advertise its horsepower. But if you’ve never used an air compressor before, you may not realize exactly why the horsepower is so important.

To sum it up, more horsepower adds up to a more powerful air compressor. And this power may be needed for your projects, especially heavy-duty ones. But if you only need a compressor for smaller tasks, you can get away with a lower horsepower model.

Keep in mind that compressors may not always reach the maximum listed horsepower. You may want to “play it safe” by getting a compressor that exceeds the maximum horsepower you are going to need.

Air Pressure

When you check listings and reviews for air compressors, one of the biggest factors is the air pressure. And this air pressure is measured using PSI (pounds per square inches).

There is no magic number for PSI, but we generally recommend getting a compressor with at least 90 PSI. But if you only need the compressor for smaller jobs (like filling the tires for your bike or car), it’s okay to have a lower PSI model.

Tank Size

Different manufacturers may focus on the tank size of their air compressors. But does size really matter when using a compressor? The answer is both “yes” and “no.”

The only time it really matters is when you have a very small air compressor. The small design means that you may not be able to continuously run that compressor for a long time.

Otherwise, tank size is largely moot because the compressor is constantly filling up the tank while in use. And if you buy a compressor with a tank larger than you actually need, you are just adding more weight and more maintenance that you’ll need to deal with in the future.

When to Use an Oil Air Compressor
  • You have heavy-duty jobs ahead of you
  • You need a durable tool
  • You don’t mind maintenance
  • You need a quieter tool
  • You don’t mind paying more
When to Use an Oil-less Air Compressor
  • You just have small jobs around the house
  • You won’t be using it as much
  • You want minimal maintenance
  • You don’t mind the noise
  • You want to save money

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Quick Look: Our Top Choices

Rating Image Product Details
Our Favorite Oil Air Compressor
Winner
DEWALT D55146 Air Compressor DEWALT D55146 Air Compressor
  • 225 PSI storage tank
  • Very Quiet
  • Powerful
  • Our Favorite Oil-Less Air Compressor
    Second place
    California Air Tools 8010 Steel Tank Air Compressor California Air Tools 8010 Steel Tank Air Compressor
  • Easy to use
  • Quiet
  • Affordable
  • Our Favorite Oil Air Compressor: DEWALT D55146 Air Compressor

    DEWALT D55146 Air Compressor

    If you need an oil air compressor and don’t mind spending an extra few bucks, we recommend the DEWALT D55146 Air Compressor. It offers an impressive 225 PSI storage tank and a really powerful engine. As an added bonus, this compressor is very quiet and also very easy to store, which is great if space is at a premium in your home.

    Our Favorite Oil-Less Air Compressor: California Air Tools 8010 Steel Tank Air Compressor

    California Air Tools 8010 Steel Tank Air Compressor

    If you’re looking for an oil-less air compressor, we recommend the California Air Tools 8010 Steel Tank Air Compressor. It fills up very quickly (a little less than three minutes) and is surprisingly easy to use and quiet while running. To top things off, it’s very affordable as well.

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    Conclusion

    Now you know everything you need to know about oil air compressors and oil-less air compressors. Ultimately, your choice all comes down to how much you want to spend, how long you need the tool to last, how quiet you need it to run, and how big the jobs ahead of you are.

    Just be careful when making your choice. An air compressor is an investment, and you’ll want to choose a model with many years of life ahead of it!

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