How to Drain Oil from a Pressure Washer. Oil is a vital part of any gasoline pressure washer engine. It helps to lubricate the engine parts which reduces friction and wear and tear. Moreover, engine oil also helps to keep the engine cool by absorbing heat from the moving parts.

It is important to change or replace the oil in your pressure washer on a regular basis to keep it running smoothly. Most manufacturers recommend changing the oil every 50 hours of use, or at least once a year if you don’t use the machine often.

However, if you notice that your pressure washer is starting to make more noise than usual, or if it isn’t performing as well as it used to, it’s likely time for an oil change. To change the oil, you must know how to drain oil from the pressure washer properly. And here is the purpose of writing this article for you.

How to Drain Oil from a Pressure Washer

So if your pressure washer isn’t working as efficiently as it should be, it may be time to drain the oil and replace it with fresh oil. Although this may seem like a daunting task, it’s actually quite simple. Here’s how to do drain oil from a pressure washer like a pro:

You will need following supplies before hand to complete the task without any disturbance:

  • Catch Basin/Empty container
  • Funnel
  • Wrench
  • Fresh Engine Oil
  • A Rag / Piece of cloth

Now follow the step by step guide to drain oil from your power washer:

  1. Begin by disconnecting the pressure washer from its water source.
  2. Remove the spark plug cable so that the engine won’t start accidentally.
  3. Next, locate the oil drain nut. This is usually located near the bottom of the pressure washer. Put the catch basin under the drain nut.
  4. Once you’ve found the oil drain plug, use a wrench to loosen it. Remove the drain plug bolt by turning it counterclockwise
  5. Then, allow the oil to drain into a catch basin or a container.
  6. Not all of the oil will come out easily. Therefore, lift the side of the pressure washer opposite the drain plug up to six inches to remove remaining oil from the crankcase.
  7. Once the oil has finished draining, clean the area with a rag, replace the oil drain plug and tight it securely.
  8. Finally, add fresh oil(following the manufacturer’s recommendations) to the pressure washer using a funnel, if required to avoid spillage.
  9. To make sure you have filled the right amount of oil, check the oil level with dip stick.

How to Drain Oil from a Pressure Washer Pump

Does a pressure washer pump have oil in it?

Yes, pressure washer pumps typically have oil in them. The oil helps to lubricate the pump and keep it running smoothly. You should check the oil level in your pressure washer pump regularly and top it off as needed.

When should I change the oil in my pressure washer pump?

Most pressure washer pumps need to have the oil changed every 40-50 hours of use, or at the beginning of each season. However, if you use your pressure washer regularly, it’s a good idea to check the oil level every 20 hours of use and change it when necessary.

I will like to share my experience with you. I am slightly heavy pressure washer user for a home user point of view. My usage sometimes reaches to 8-10 hours a week. Therefore, oil in my pressure washer shows symptoms to change it after 2 months of use.

However, I always change the engine oil of my pressure washer at the start of the summer before starting it first time in the season.

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How much oil should be in a pressure washer pump?

This mostly depends on the make and model of your pressure washer, as well as the type of oil that is recommended for use. However, as a general rule of thumb, it is generally considered there must be 5 oz of pump oil in the pressure washer which is a single bottle of pump oil.

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