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Atlas Copco Compressor Oil – Choosing Oil, How Much To Use & Changing Oil

Published Categorized as Air Compressor Oil Guides, Atlas Copco No Comments on Atlas Copco Compressor Oil – Choosing Oil, How Much To Use & Changing Oil

It can be quite a daunting task trying to figure out how to change your Atlas Copco compressor oil, how much to use, and what is the correct Atlas Copco oil to use, right? Well, fear no more; I will answer all these questions about Atlas Copco compressor oil for you.

Table of Contents

What kind of Oil goes in an Atlas Copco Compressor?

It is extremely important to refer to your compressor manual before purchasing Atlas Copco oil for your Atlas Copco compressor. We have numerous Atlas Copco compressor manuals available on our brand page so please visit here first!

The manual will tell you what Atlas Copco oil is compatible with your air compressor; if you cannot locate your manual, please contact Atlas Copco directly or visit their website to download a manual for your compressor.

Atlas Copco Compressor Oils Available on Amazon

Atlas Copco doesn’t directly sell its range of Roto compressor oils on Amazon, but they have links on their website. I did, however, find a Killer Filter equivalent oil for Atlas Copco air compressors, which, according to the comments, does the job and is 1/3 of the price!

Alternative Compressor Oils Available on Amazon

A few alternatives to the Atlas Copco advised compressor oils are produced by Mobil. Again, it is very important to ensure the oil is compatible with your air compressor before putting it into the system, so please check first!

The first is the Mobil 101016 Rarus which is suitable for reciprocating air compressors whether they’re single or multistage. This oil lubricant boasts excellent water separability, protection against rust and corrosion, long life for extended oil drain and provides your compressor with very clean air valves.

The second is the Mobil 100870, boasting similar benefits as the previous oil but potential to work with reciprocating, rotary screw and rotary vane compressors.

How Much Atlas Copco Oil to Use in an Atlas Copco Compressor?

It is certainly a difficult task to determine how much Atlas Copco oil is required in a specific model of compressor pump without having the manual at hand.

If you’re finding it hard to locate your specific manual, you should contact Atlas Copco directly or search the internet for the specifications of your Atlas Copco compressor and its model to find it.

I will now provide you tips on how to check the Atlas Copco oil amount inside your compressor and then provide you with a step by step guide on how you can go about changing it!

Atlas Copco Oil Sight Glass

The image below shows a compressor pump sight glass, it is here where you can check the amount of Atlas Copco oil inside the compressor. Ideally, you should aim for the oil being approximately half way up the red dot like in the image below.

Air Compressor Oil Sight Glass
Air Compressor Oil Sight Glass

Atlas Copco Oil Dipstick

Sometimes it is possible that the compressor pump does not have a sight glass, in this case you can check Atlas Copco oil level by using the dipstick.

Take the dipstick out of the sump and clean it before dipping it back into the sump. When you pull it out again, you can check the markings on it which will tell you the Atlas Copco oil level.

Typical oil fill dipstick
Typical oil fill dipstick

Alternative Method for Checking Atlas Copco Oil

An alternative method if you don’t have a sight glass or dip-stick on your Atlas Copco compressor is draining the Atlas Copco oil from the tank into a reservoir and judging the level of it from that.

How to Drain Atlas Copco Oil from the Sump

First of all, locate your Atlas Copco oil plug drain and unscrew it to allow you to drain the Atlas Copco oil. Use a reservoir to catch the draining Atlas Copco oil, and then you can gauge how much was in there.

Tip: Be careful not to get any spillages when draining the Atlas Copco oil. It may useful to lay something out on the floor below the compressor like dust sheets to catch any spillages.

How to Change Atlas Copco Compressor Oil

Changing the Atlas Copco oil on each model of Atlas Copco compressors can vary significantly. Before doing anything, check the model manual or contact Atlas Copco directly to determine whether your air compressor is 100% oil-lubricated.

Changing Atlas Copco Compressor Oil Process

Follow the previously described steps for draining the Atlas Copco oil from the compressor into a reservoir and then securely tighten the plug back into the bottom of the sump.

Now you can add the replacement Atlas Copco oil you have at hand into the intake port at the top of the sump. The process can vary depending on the specific model of your Atlas Copco compressor, therefore it is difficult to be any more specific than this.

You should add near enough the same amount of Atlas Copco oil that you’ve removed or gauge it using the sight glass or dipstick if you have them.

Note: when filling the compressor with Atlas Copco oil, make certain that you do not fill the air intake on the pump or overfill the sump.


The above methodology is simplified for ease into the following steps:

  1. Check the Atlas Copco compressor oil level
  2. Locate plug on compressor sump and unscrew
  3. Drain the Atlas Copco oil
  4. Securely tighten sump plug
  5. Locate the Atlas Copco compressor oil intake port
  6. Replenish the compressor with the same amount of Atlas Copco oil as removed or gauge using dipstick/sight glass (do not overfill)

Please be aware that without having access to every air compressor model manual, and assuming that the manual tells the reader what the Atlas Copco oil volume is, there is no way to be anything but vague when providing advice about changing Atlas Copco compressor oil and the level in which you must add.

If you have any questions about Atlas Copco compressor oil, changing it, which to use and how to use it then please leave a comment below with photos if applicable to help others respond to you!

By Aidan Weeks

A passionate Mechanical Engineer with endless enthusiasm for fluid power - building off the back of over 18 years of high quality contribution and discussion stimulated by Bill Wade here at About Air Compressors. With both practical and theoretical experience in pneumatics and hydraulics, I'm putting my knowledge to work - and working my grey-matter through my research, assistance and publishing work here at About Air Compressors. Feel free to reach out any time! P.S. A HUGE shout out to Doug who really offers such great value to all visitors to About Air Compressors - once again, feeling like I'm standing on the shoulders of GIANTS by getting to work alongside such a great community

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