Changing the oil in a lawn mower is essential for its longevity. It keeps the engine running smoothly and efficiently.
Many homeowners overlook this simple task, leading to potential engine problems. Regular oil changes not only improve performance but also extend the life of your lawn mower. If you’re new to lawn care or have never changed the oil before, don’t worry.
This guide will walk you through the process step-by-step. By following these easy instructions, you can keep your lawn mower in top shape and ensure it runs well for years to come. Let’s dive into the details and make sure your lawn mower stays healthy and functional.

Preparing For The Oil Change
Changing the oil in your lawn mower is important. It keeps the engine running smoothly. Before you start, you need to prepare. This section will guide you through the steps to get ready.
Gathering Supplies
You will need several items to change the oil. Make sure you have them all. Here is a list of what you need:
- New oil (check your mower’s manual for the type)
- Oil drain pan
- Rags or paper towels
- Oil filter (if your mower has one)
- Funnel
- Socket wrench set
- Gloves
Having all supplies ready will make the process smoother. It saves time and effort.
Safety Precautions
Safety is key when changing oil. Follow these steps to stay safe:
- Make sure the mower is on a flat surface.
- Turn off the engine and let it cool.
- Disconnect the spark plug wire to prevent accidental start.
- Wear gloves to protect your hands.
- Keep rags handy to clean up spills.
Following these steps will keep you safe. Always pay attention to what you are doing.
Positioning The Lawn Mower
Proper positioning of your lawn mower ensures a smooth oil change process. This step is crucial for safety and efficiency.
Finding A Flat Surface
First, find a flat surface for your lawn mower. A flat surface prevents the mower from rolling. It also ensures the oil drains completely. Concrete or a driveway works well. Avoid grassy or uneven areas. These spots can cause the mower to tip over.
Turning Off The Engine
Next, turn off the engine. Let the mower cool down if it was running. Hot engines can cause burns. Remove the spark plug wire for extra safety. This prevents the mower from starting accidentally. Safety should always come first.
Draining The Old Oil
Changing the oil in your lawn mower is an essential maintenance task. It helps keep the engine running smoothly. The first step in this process is draining the old oil. This ensures that your lawn mower operates efficiently and lasts longer.
Locating The Oil Drain Plug
The oil drain plug is usually located under the mower deck. Check your lawn mower’s manual to find its exact location. Look for a small plug that can be unscrewed. It is often near the base of the engine.
Make sure the mower is on a flat surface before you start. This helps prevent spills and makes it easier to work.
Using An Oil Pan
Place an oil pan under the drain plug. This will catch the old oil as it drains out. Make sure the pan is large enough to hold all the oil.
Slowly unscrew the drain plug using a wrench. Be careful as the oil might start to flow immediately. Let the oil drain completely into the pan.
Once the oil has drained out, screw the drain plug back in place. Ensure it is tight enough to prevent leaks.

Removing The Oil Filter
Changing the oil in your lawn mower is essential for its longevity. One crucial step in this process is removing the oil filter. This ensures that your engine runs smoothly and efficiently. Let’s dive into the details of this step.
Loosening The Filter
First, locate the oil filter on your lawn mower. It is usually near the engine. Use a filter wrench to loosen the filter. Turn the wrench counterclockwise. Be careful not to apply too much force. This could damage the filter or its housing.
If the filter is too tight, try using a strap wrench. This tool can provide better grip and leverage. Once the filter is loose, continue turning it by hand. Wear gloves to protect your hands from oil and sharp edges.
Inspecting The Filter
After removing the filter, inspect it for any damage or debris. Look for metal shavings or sludge. These could indicate engine problems. If the filter appears damaged, replace it with a new one.
Check the rubber gasket on the filter. Ensure it is intact and not cracked. A damaged gasket can cause oil leaks. If the gasket is worn out, replace the filter. Use a clean cloth to wipe the filter housing. This ensures a good seal when you install the new filter.
By following these steps, you can successfully remove and inspect the oil filter. This helps maintain your lawn mower’s engine performance.
Replacing The Oil Filter
Replacing the oil filter in your lawn mower is vital. It ensures your engine runs smoothly. A clean filter removes dirt and debris from the oil. This helps maintain engine performance. Let’s discuss how to choose and install a new oil filter.
Choosing The Right Filter
Selecting the correct oil filter is crucial. Check your lawn mower’s manual. It will specify the type of filter needed. Using the wrong filter can damage your engine. Visit a trusted store or online shop. Ensure the filter matches your lawn mower model. If unsure, ask for help. Store staff or customer service can guide you.
Installing The New Filter
First, turn off the lawn mower. Let the engine cool down. Locate the oil filter. It’s usually near the engine block. Use an oil filter wrench to remove the old filter. Turn it counterclockwise. Be ready for some oil to spill. Place a container underneath to catch it.
Next, prepare the new filter. Apply a thin layer of fresh oil to the rubber gasket. This helps create a good seal. Screw the new filter into place by hand. Turn it clockwise. Do not over-tighten. Hand-tight is usually enough.
Finally, check for leaks. Start the lawn mower. Let it run for a few minutes. Inspect the filter area. If you see oil leaking, tighten the filter a bit more. Once there are no leaks, your lawn mower is ready to go.

Adding New Oil
Adding new oil to your lawn mower is a crucial step. It ensures smooth operation and extends the machine’s life. Follow these simple steps to make sure you do it right.
Selecting The Correct Oil
First, choose the right oil for your lawn mower. Most lawn mowers use SAE 30 oil in warmer temperatures. For colder climates, SAE 10W-30 works better. Check your lawn mower’s manual. It will recommend the best oil type for your engine. Using the wrong oil can damage your mower.
Pouring The Oil
Now, it’s time to add the oil. Place the lawn mower on a flat surface. Open the oil fill cap and insert a funnel. Pour the new oil slowly. Use the dipstick to check the oil level. Do not overfill. It is better to add a small amount and then check. When the oil reaches the correct level, close the cap tightly. Clean any spilled oil with a cloth.
Checking Oil Levels
Maintaining the correct oil levels in your lawn mower is crucial for optimal performance and longevity. Regularly checking oil levels ensures the engine runs smoothly, preventing damage and costly repairs. Follow these steps to check and adjust the oil levels in your lawn mower.
Using The Dipstick
The dipstick helps determine the current oil level in your lawn mower.
- First, locate the dipstick. It is usually near the engine.
- Remove the dipstick and wipe it clean with a cloth.
- Reinsert the dipstick fully, then remove it again.
- Check the oil level on the dipstick. It should be between the “full” and “add” marks.
If the oil level is below the “add” mark, it is time to add more oil.
Adjusting Oil Amount
Adding the correct amount of oil is essential. Too much or too little can harm the engine.
- Use a funnel to avoid spills.
- Pour oil slowly, checking the level frequently with the dipstick.
- Stop adding oil once it reaches the “full” mark on the dipstick.
- Reinsert the dipstick and ensure it is secure.
Regularly checking and maintaining proper oil levels will keep your lawn mower running efficiently.
Disposing Of Old Oil
Disposing of old oil from your lawn mower is crucial for environmental safety. Proper disposal prevents harmful chemicals from contaminating soil and water. This section will guide you through the steps of storing used oil and finding a disposal site.
Storing Used Oil
After draining the oil from your lawn mower, store it safely. Use a clean container with a tight lid. An empty oil container works well. Label the container clearly as “used oil” to avoid confusion.
Keep the container in a cool, dry place. Ensure it is out of reach of children and pets. Avoid storing used oil near heat sources. This prevents accidental fires and spills.
Finding A Disposal Site
Locate a nearby disposal site for your used oil. Many auto parts stores accept used oil for recycling. Some local recycling centers also take used oil. Check their websites or call them for confirmation.
Another option is to contact your local waste management service. They often have designated drop-off points for hazardous materials. Follow their guidelines for oil disposal.
Here’s a quick list to help you find a disposal site:
- Auto parts stores
- Recycling centers
- Local waste management services
Remember, disposing of oil properly helps protect the environment. Always follow local regulations for hazardous waste disposal.
Frequently Asked Questions
How Do I Drain The Oil From My Lawn Mower?
First, disconnect the spark plug. Then, remove the oil cap and tilt the mower to drain the oil into a container. Finally, replace the oil cap and dispose of the old oil properly.
How Often Should You Change Lawn Mower Oil?
Change lawn mower oil every 50 hours of use or at least once a season. Check the manual for specifics.
What Happens If You Don’t Change Oil In Lawn Mower?
Neglecting to change oil in your lawn mower can cause engine wear, overheating, and eventual failure. Regular oil changes ensure proper lubrication, extend engine life, and maintain performance.
Where Is The Oil Drain Plug On A Briggs And Stratton?
The oil drain plug on a Briggs and Stratton engine is typically located at the base of the engine block. Check near the crankshaft area or consult your user manual for exact placement.
Conclusion
Changing the oil in your lawn mower is simple. Follow these steps for a smooth process. First, gather your tools. Then, drain the old oil. Replace it with new oil. Check your manual for specific instructions. Regular oil changes keep your mower running well.
This can extend its life. A well-maintained mower cuts grass better. It saves you time and effort. Now you know how to change the oil. Enjoy a well-maintained lawn mower. Happy mowing!