Skip to main content
  1. Home
  2. Gardening
  3. Evergreens

How to change the oil in your lawn mower in 6 simple steps

Lawn mowers are important to lawn maintenance and health, so it’s vital to take care of them. They need gas or electricity, to be kept clean, for their blades to be sharpened, and, of course, an oil change every so often.

How often, though, is every so often? How much oil do you need? What do you do with the old oil? If these questions are stressing you out, you aren’t alone. We’re here to walk you through every step of changing your lawn mower’s oil in this simple guide.

Person removing oil dipstick from lawn mower and wiping it with old, white wash rag
Digital Reflections / Shutterstock

When should you change your lawn mower’s oil?

In general, your oil needs changing after every season of use, every 50 hours of use, or after a period of use with rough conditions. Since most mowing occurs during spring and summer, this means you’ll most likely want to change your oil every fall. However, it’s a good idea to keep an eye on your oil and check it regularly. If the oil begins running low, has particles in it, or it becomes sludge-like, you should change it, even if it doesn’t line up with the regular schedule.

Recommended Videos

You should also check your owner’s manual for the lawn mower. An owner’s manual will have instructions, including any special instructions for your specific model of lawn mower. If you got your lawn mower secondhand or have misplaced your owner’s manual, you can check the manufacturer’s website. This is important, as not every engine is exactly the same, and it’s crucial to know what your mower in particular needs to avoid any safety concerns or damage to your mower.

Oil slowly pouring into the engine of a lawn mower
Tony740607/Shutterstock

How to change your lawn mower’s oil

This entire process is far less daunting than it seems, we promise. Here’s our simple, step-by-step guide

  • Start your oil change with warm oil, which helps the entire process go smoothly. You can do this by either changing your oil directly after you’ve mowed your lawn or running the lawn mower for 10 to 15 minutes before beginning.
  • Disconnect the spark plug wire from the spark plug and keep them separated. This is where your owner’s manual comes in handy, as different models may have different precautions in place regarding the spark plug.
  • Open the oil tank and remove the dipstick. Wipe the oil off the dipstick with a rag and set it to the side. Be careful not to lose it.
  • Grab an oil pan or a similar, oil-safe container to drain the oil into. A container that isn’t oil-safe could leak, which can create a mess or lead to oil spilling into your yard.
  • Remove and dispose of the oil. There are two ways to do this: the tilt method and siphon method
    • The tilt method doesn’t require any extra tools, but it can be a bit messier. Depending on your model of lawn mower, you may need to seal or empty the gas tank first to prevent a gas spill. Simply put your oil pan next to your mower and tilt it over, pouring the oil into the pan. Take any precautions against spilling that you can, such as wearing old clothes or putting a drop cloth down.
    • The siphon method does require a siphon, oil removal kit, or pump of some sort, but it is more precise and less likely to create a mess. Be sure that the end of the pump or siphon fits into the oil tank, but other than that, any cheap hand pump will work just fine. Pump the oil out of the tank and into the pan.
    • Take the old oil to almost any location that sells motor oil, and they can recycle it for you. This includes many smaller mechanics and auto parts stores as well as larger retailers and some service stations. Never dump oil into your yard or down your sink. It can cause major problems for both your plumping and your plants.
  • Once the oil has been drained, you’re ready to replace it with fresh oil. A funnel is extremely helpful for this, but it can be done without one if you pour very slowly and carefully. Just be prepared for potential spills.
    • When it comes to the type and amount of oil you’ll need, refer to the owner’s manual or manufacturer’s website. If you aren’t certain, or can’t find the information, you can rely on the experience of your local mechanic or auto parts store for a recommendation.
    • Add your oil slowly, and check the oil level as you go to be sure you aren’t under or over filling the tank. Once you’ve replaced the oil, put the dipstick back in and secure the lid.

Now you’re ready to clean up any spills, reattach the spark plug, and store your mower until it’s time to mow your lawn again. That’s all there is to it! Remember to keep your owner’s manual handy and don’t hesitate to ask your local experts for help if you need it. Once you get in there and start working, you’ll find that it’s nothing you can’t handle — even an oil change.

Keep Bermuda grass at bay with these lawn care strategies
Tips on keeping unwanted Bermuda grass under control
Manicured Bermuda lawn

Bermuda grass, also known as Cynodon dactylon, is a common type of lawn grass. Its toughness, adaptability, and creeping growth habit attract either appreciation or disdain from the homeowners, gardeners, landscapers, and others who plant it or are invaded by it. While it's hardy nature makes it a resilient lawn grass, its habit of spreading can make it a serious nuisance. Even worse, once it's spread into an area it's incredibly difficult to get rid of. If Bermuda grass is spreading into your lawn from the surrounding area or you've just moved into a new home with a Bermuda grass lawn you'd like to replace, then here are our tips for controlling it.

Read more
Sustainable gardening: Tips for a greener, eco-friendly garden
Make your garden more sustainable with these tips
Cupped hands holding soil and little seedling

Gardening can be a rewarding, fun, and useful hobby, but it can also be challenging at times. If you’re struggling to keep your garden healthy and happy, then it might be time to consider switching to a more sustainable gardening method. Sustainable gardening can make your garden easier to care for, and it’s better for the environment. If you’re wondering about what exactly sustainable gardening is and how it works, then this is the guide for you! We’ll explain what it is and help you get started with some tips and tricks.
What is sustainable gardening?

Sustainable gardening doesn’t have a single concise definition, and it can take many different forms. Unfortunately, that sometimes leaves gardeners (especially beginners) a bit confused. To break it down, sustainable gardening methods focus on the environment, including being mindful of what chemicals or invasive species are being introduced to the ecosystem and trying to mimic the natural conditions of the environment in your garden.

Read more
How to get rid of gnats without harming your plants
Follow these tips and get rid of gnats now
Potted herbs on a windowsill

In most cases, gnats are little more than a nuisance. For gardeners, though, a gnat infestation can spell devastation. While adult gnats don’t damage plants, the larvae will eat roots and leaves. In large numbers, they can cause serious damage. There are many pesticides on the market, but some plants are sensitive to the chemicals in them. Luckily, there are other options for controlling a gnat infestation, so you can save your plants without scorching their leaves. This guide on how to get rid of gnats in plants will explain everything you need to know.

Read more