How To Change The Oil In A Lawn Mower

Today you’re going to learn everything there is to know about how to change the oil in your lawn mower.


  • A quick-step guide with minimal reading and a short 1 minute video to get your started with fuss.
  • And a more in-depth guide explaining the steps in more detail how to start your mower without any prior knowledge.

Let’s jump right into the quick-step guide:

Quick Guide on How To Change The Oil in Your Lawn Mower:

  1. Unscrew gas cap and put plastic between it and the gas fill tube. When tilting the mower over to drain the old oil this will prevent gas from leaking out.
  2. Figure out where the oil drain is and tilt the mower over to drain the oil into a drain pan. Remove the cap and drain the oil.
  3. Now tilt the mower back up and you’re ready to fill with fresh oil. Usually 30W detergent oil is the go-to. Don’t overfill – use dip stick to find level.
  4. Change oil after long storage and ever 20 – 40 hrs of use.

Here’s a video if you prefer to watch the steps:

Gather The Necessary Tools And Materials For Changing The Oil 

Changing the oil in your lawn mower is a task that you should undertake every year (and usually more often). It is important to do regularly to keep your machine running smooth. Let’s walk through some more detailed steps of changing the oil in a lawn mower. We will also provide tips on how to prolong the life of your lawn mower.

The health of your lawn mower engine depends on fresh oil for lubrication of its internal parts. Over time, oil breaks down and can become sludge-like, making it difficult for the engine to function properly. The frequency with which you need to change the oil will depend on the make and model of your lawn mower, but most manufacturers recommend changing it at least once per year (50 hrs of use).

To change the oil in your lawn mower, you will need to gather a few supplies.

These include:

  • A new oil filter
  • Fresh oil
  • A drain pan
  • A wrench.
Lawn mower smoking white smoke problems

Your lawn mower engine will fail if you never change the oil.

Step 1: Drain The Oil From The Lawn Mower

  • To drain the oil, simply remove the oil drain plug from the oil tank and place a container underneath the spout.
  • Then, start the engine and let it run for a few minutes to heat up the oil. Once the oil is hot, turn off the engine and wait for it to cool down before carefully removing the spout and draining the oil into the container.
  • Be sure to dispose of the used oil properly – never pour it down the drain – and refill the tank with fresh oil before starting the mower again.

Step 2: Add New Oil To The Lawn Mower

Adding oil to a lawn mower

Make sure to read your Owner’s Manual to know which type of oil to refill with.

  • Remove the oil fill cap and add the recommended amount of oil.
  • Replace the oil cap and screw it on tightly.
  • Start the lawn mower engine and let it run for a few minutes.
  • Stop the mower engine and check the oil level. You can check it with a dipstick.
  • If required, add more oil until the level is at the full mark.
  • Be sure to dispose of any used oil properly.
Man repairing an fix an old lawn mower.

Depending on your mower you may have a bolt drain plug instead of a simple twist cap. Have a wrench handy to remove the drain bolt if necessary.

Step 3: Start Up The Lawn Mower And Check For Leaks

  • First, take a look at the oil level in the engine. If it’s low, add more oil until it reaches the full line on the dipstick.
  • Next, check the air filter and spark plugs. If the air filter is dirty, replace it with a new one.
  • And finally, start up the lawn mower and check for leaks. If you notice any gasoline or oil leaks, fix them before using the mower.

How To Prolong The Life Of Your Lawn Mower – Some Productive Tips:

As we all know, lawn mowers are one of the most important tools that help us maintain our yards in a good condition. But like any other machinery, they too have a certain lifespan.

In order to prolong the life of your lawn mower and keep it running smoothly for years to come, there are a few things you can do:

Read The Manual Carefully

Read the manual carefully and follow the instructions for the letter. This may seem like common sense, but you’d be surprised how many people don’t do this.

Keep The Blades Sharp

Keep the blades sharp. Dull blades not only tear at the grass, making it more susceptible to disease, but they also put unnecessary strain on the engine.

Clean The Mower After Each Use

This includes removing any grass clippings, dirt, or debris that may have accumulated.

Change The Oil Regularly

Change the oil and oil filter regularly. Depending on how often you use the mower, this may need to be done every few months or so.

Store The Mower Properly

Store the mower properly. This means keeping it in a dry, sheltered area out of the elements when you’re not using it.

By following these tips, you can help ensure that your lawn mower will provide years of reliable service. So get out there and enjoy your yard!

Wrapping Up:

As you can see, changing the oil in a lawn mower is a fairly simple task that anyone can do. And it’s an essential part of keeping your mower running properly. So be sure to add it to your regular maintenance routine.

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