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How much oil to put in lawn mower

How much oil to put in lawn mower. When it comes to your lawnmower, there are many things that you need to keep in mind to ensure that it is running well.

However, one of the most important things is ensuring that you put the right amount of oil in it. Here is some information on how much oil to put in lawn mower and what you need to know about doing so.

One of the most important aspects of taking care of your lawnmower is ensuring that you put the right amount of oil into it.

If you do not put enough oil in, your lawnmower can struggle or even seize up. On the other hand, putting too much oil in can cause problems with how the mower runs.

How much oil to put in lawn mower

put oil in a lawn mower

The amount of oil you need to put in your lawn mower will vary depending on the make and model of the mower.

However, most lawn mowers require between 20 and 30 ounces of oil. You can find this information in the owner’s manual for your mower.

The type of oil

When putting oil in your lawnmower, using the right kind of oil is essential. The type of oil you use will depend on your climate.

If you live in a hot environment, you must use an oil designed to work in high temperatures. If you live in a cold climate, you must use an oil designed to work in cool temperatures.

If you are unsure which oil to use, don’t worry, as we’ve made the list of lawn mower oils by temperature range.

Temperature Type of Oil (Grade)
0 to 100°F 10W-30
Less Than -40°F 5W-30
-20 to 120°F 5W-30
Less than 40°F SEA 30
Normal Temperature 15W-50

How Often Should I Change the Oil in My Lawnmower?

How often to change oil

Even though this aspect of lawn mower maintenance is often neglected, it should be done regularly. It isn’t only about adding more oil to your engine after it’s been used.

You must make many adjustments for the lawnmower to operate smoothly and without damaging the internal machine. Most grass mowers require an oil change after every 20 to 50 hours of operation.

However, it is dependent on your lawn mower’s type, model, and engine. Also

You might want to consider the type of oil used. In most cases, a machine must be drained after every use and ready for its next session. If this procedure is not done regularly, it can cause damage to your engine in time.

An oil change is necessary when the engine has been overused or when you go from using one kind of oil to another.

For example, if you’ve used straight petroleum-based oils before changing them with blended ones, you need an immediate adjustment because their viscosities vary immensely.

Besides, if you’ve always relied on synthetic lubricants and decided to switch back to regular ones out of boredom or cost issues, that also warrants a quick drain and refill session.

How Much Oil Does a Lawnmower Take?

How Much Oil Does a Lawnmower Take

It all depends on the size and type of engine. You can use a dipstick near the oil cap to determine how much oil your lawn mower needs.

For this reason, you need to know where your oil dipstick is before starting up your lawnmower for the first time in spring or after winter storage. Each manufacturer has its specifications for refilling the motor with oil.

We’ve made a table of popular lawn mowers list with the amount of oil they take for your ease.

Brand Amount of Oil Used
Honda Lawn Mower Engine (GCV 160/190) 18 Oz
Troy Bilt TB230 20 Oz
Husqvarna Lawnmower Engine 20 Oz
Toro 6.5 hp (1900 cc) Lawnmower 16 Oz
John Deere Lawn Mower 48 Oz
Craftsman 6.5 Lawn Mower 20 Oz
Tecumseh Lawn Mower 64 Oz
Briggs and Stratton Riding Mower 1000 series 18 Oz
Lawn Boy 6.5 149 cc 20 Oz

How to Change Oil in a Lawn Mower?

How to Change Oil in a Lawn Mower

Before changing your lawnmower’s oil, always ensure it is cool. For this reason, the machine needs to be left running for a while before switching gears and giving it a rest.

After all, you’re not going to change the water in a boiling kettle because that would only lead to an injury or two.

Step By Step Guide On How to Change the Oil In Lawn Mower

Step 1: Park the mower on a level surface, and engage the parking brake.

Step 2: Shut off the engine and remove the key.

Step 3: Raise the mower deck to its highest position.

Step 4: Locate the oil cap and remove it.

Step 5: Insert the dipstick into the oil filler tube and pull out.

Step 6: Wipe the dipstick with a clean cloth or paper towel.

Step 7: Reinsert the dipstick and wait a few seconds for it to return to its original position.

Step 8: Remove the dipstick and read the oil level.

Step 9: Add oil to bring the level up to full marks on the dipstick if necessary.

Step 10: Replace the oil cap and tighten it.

Step 11: Startup the engine and check for any leaks.


Don’t forget to write down when your oil was last changed. This way, you can use that date to determine when the next drain and fill session will be due since all engines are different in their tracks.

What Happens If You Don’t Change the Oil in The Lawnmower?

There are many reasons for changing the oil in your lawnmower. If you leave it too long between drain intervals or use low-quality lubricants, you will experience issues with your machine, which may reduce its lifespan.

Low oil levels can cause severe damage to internal engine components. In contrast, common quality oils can break down and form deposits of burned oil inside vital areas such as the combustion chamber and piston rings.

These deposits decrease your motor’s performance and fuel economy and make it run hotter than usual. The excess heat wears out the engine more quickly and will shorten its life (typically by tens of thousands of hours).

Lubrication also occurs better when the right amount of fresh oil is added, not too much and not too little.

In a nutshell, failing to change your lawnmower’s oil regularly can lead to decreased engine performance, increased fuel consumption, and shortened machine life.

Worse still, it could potentially cause a fire if not done correctly. So don’t take the chance – make sure you regularly change your lawn mower’s oil for optimal performance and safety!


How much oil to put in lawn mower. Changing your lawn mower’s oil is a necessary chore that should be done regularly. Not only does it keep the machine running smoothly, but it also helps to prevent damage to the engine.

Failing to change the oil can lead to decreased performance, increased fuel consumption, and shortened machine life. Make sure you change your lawn mower’s oil regularly for optimal performance and safety!

Thank You for reading. Have a nice day!

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