How do I change the oil on my air compressor?

When changing your air compressor’s oil, follow the instructions in your manual. Although the basics of an oil change are simple—drain the old oil and then pour in new oil—the individual steps can be significantly more detailed. As an example, here are the steps required to change the oil in VMAC’s G30 gas powered air compressors:

Do air compressors need lubrication?

When the compressor is running, depending on the size and type of air compressor, the oil will either splash up from the sump into the areas that require lubricating, or there will be an integral pump to pump the oil from the sump up to the parts needing continuous lubrication while the compressor is running.

What kind of oil does a rotary screw air compressor use?

Generally, rotary screw air compressors use synthetic oil, while recreational compressors may use standard oil. Air compressor oil varies in composition and color but is often yellow or light brown and becomes darker as it becomes contaminated over time. Why do rotary screw air compressors need oil?

How does an oil lubricated compressor work?

Oil-lubricated compressors have an oil sump similar in concept to those in an automobile. It will have an oil pan. Lubricating oil that is added to the compressor flows down into the oil sump and sits there, under the pump, waiting for the compressor to start. Additional oil reading:

Does air compressor oil have additives?

Air compressor oil has the proper additives to make it suitable for the harsh, compressor lubricating environment. These additives are not necessarily found in automobile oil, air tool oil, etc. The additives that are other types of oils are not compatible and, in fact, may damage your air compressor.

How do you fix a leaking compressor oil?

Replace the drain plug, and wipe any oil residue from the surface so that you can see if you have a leak. Pour fresh compressor oil into the fill port to the specified level for your compressor. Replace the oil fill cap and you’re good to go!