Can You Use Car Oil in a Lawn Mower?

By Desmond J.

Last Update:

This post contains affiliate links, and we will be compensated if you buy after clicking on our links. Read our disclaimer.

Read our editorial process

Lawn mower oil is a type of engine oil that is specifically designed for use in mowers and other small engines. It is formulated to provide superior protection against wear and corrosion, and it also helps to keep the machine running smoothly. Lawn mower oil is available in both conventional and synthetic varieties, and it is essential to use the correct type of oil for your particular engine.

If you are not sure which type of oil to use, consult your owner’s manual or contact the manufacturer of your mower. According to the manufacturer’s recommendations, it is also important to change the oil regularly. Failing to do so can lead to decreased performance and shortened life. So the question is can you use car oil in a lawn mower?

Yes, you can use car oil in a lawn mower. In fact, it’s often recommended that you do. The reason is that car oil is thicker than standard mower oil, and it, therefore, provides more protection against wear and tear. It’s also less likely to leak out of the engine. However, you should avoid using synthetic oils, as they can cause damage to the blades.

What Is In Car Oil?

The first car oil was just oil and a few additives. It was intended to lubricate the engine and not much else. However, today’s oil is much more sophisticated. Modern oils contain a variety of chemicals that help keep the engine clean and running smoothly. In addition, many oils now include additives that protect the engine against wear and tear.

The main component of car oil is still oil, making up 70-90% of the mix. The other 10-30% is made up of additives that are intended to improve the performance and longevity of the engine.

So, how much and which additives are good to go with your mower, depends on the car engine time. Because there are various types of car engines available. For example, 2-cycle and 4-cycle engines are not required similar engine oil.

Always use the right additives to extend the car engine life and offers a better millage.

Does Lawn Mower Oil Need Additives?

The simple answer is no. There are a variety of additives on the market that promise to improve your lawn mower’s performance. However, using these additives is not necessary and can even be harmful. In fact, most modern engines come pre-treated with an oil designed to help them run properly, so adding another type of oil could actually do more harm than good.

If you’re looking to improve your engine’s performance, the best way to do so is by regularly changing the oil and keeping the air filter clean. So don’t bother with special additives – just stick to the basics!

What Oil Can You Use In A Lawn Mower?

There are many different types of oil that you can put in your mower. The most important factor is to use the right type of oil for your machine. If you use the wrong type of oil, it can cause damage and wear down it prematurely.

The most common type of oil is petroleum-based oil. This type of oil is inexpensive and easy to find. However, it doesn’t last as long as other types of oil and it can be harmful to the environment.

Another option is synthetic oil. Synthetic oil is more expensive than petroleum-based oil, but it lasts longer and is more environmentally friendly. It’s also important to use the right weight or viscosity of synthetic oil.

When it comes to lawn mower oil, one of the most important factors to take into account is your climate. If you live in a hot, dry climate, you’ll need to use a different type of oil than if you live in a cooler, more humid climate.

In addition, you should always heed the manufacturer’s recommendations when it comes to oil type and viscosity. Using the wrong type of oil can lead to engine damage and reduced performance.

Here we recommend some mower oil:

SAE 30 Oil

  • Most thinner oil and typically it is used for small air-cooled engines like lawn mowers, chainsaws, and small tractors.
  • It’s a low rating thinner oil and performs better, especially in cold weather and hot weather.
  • The temperature range is 30 to 100 degrees Celsius.

SAE 10W-30 Oil

  • It’s synthetic oil and is used for high-velocity engines like riding mowers.
  • High-velocity oil and ideal for cooler reigns but it is also pretty stable at the higher temperatures.
  • The temperature range is -18 to 30 degrees Celsius.

SAE 5W-30 Oil

  • It’s a multi-grade and lower 5 to higher 30-grade engine oil. Mostly used for the light-duty petrol engine.
  • Great for extreme cold weather.
  • The temperature range is -29 to 4 degrees Celsius.

Synthetic SAE 5W-30 Oil

  • Multigrade oil and specially formulated for 4-cycle air-cooled engines.
  • The best protection for all temperatures and less oil consumption.
  • The temperature range is -29 to 4 degrees Celsius.

Vanguard 15W-50 Oil

  • Multigrade and great for varying temperatures.
  • Great picks for commercial usage like lawn cutting and pressure washing
  • The temperature range is -2 to 49 degrees Celsius.

Is Car Oil The Same As Lawn Mower Oil?

The answer is yes and no. Most car oils are not specifically formulated for use in lawn mowers, but they will work in a pinch. However, using the wrong type of oil can cause engine damage.

The mower oil is specifically designed for use in small engines, and it has special additives that help protect against wear and corrosion. Using car oil instead of lawn mower oil can result in shorter engine life and decreased performance.

Engine Type

There are two main types of lawn mower engines- the two-stroke and the four-stroke. The two-stroke is simpler, and therefore cheaper to make, but it also emits more pollutants. The four-stroke is more expensive to make, but it emits fewer pollutants.

Two Stroke Lawn Mower Engine Oil

Two-stroke lawn mowers were once the most common type of mower, but they have been replaced by the more fuel-efficient, cleaner, and quieter four-stroke mower. Two-stroke engines are no longer in production because they are not as fuel-efficient as four-stroke engines. Additionally, two-stroke engines produce more emissions than four-stroke engines, and they are noisier than four-stroke engines.

Two-stroke engines are popular in small engine applications because they are lightweight and have a high power-to-weight ratio. Unlike four-stroke engines that have separate compartments for gasoline and oil, two-stroke engines mix gasoline with oil. A lightweight oil is required to prevent the engine from seizing. The oil also lubricates the moving parts and helps to cool the engine.

The bottom line is, that you should not use two-stroke motor oil in the two-stroke lawn mower. The oil is heavier and bogs the small engine easily. Instead, use manufactured recommended lightweight oil for the engine and ensure longevity.

Four Stroke Lawn Mower Engine Oil

Now a day modern mowers are powerful and they pack with a four-cycle or four-stroke engine which stores the oil and gas in separate compartments like vehicles. Most modern mower engines use SAE30 oil or 10W-30 oil for less oil consumption and offer smooth running. And those types of oil are also a popular choice for car engine oil.

If your car and lawn mower have 4 stroke engine and can use high-quality similar oil. However, make sure that the oil is high quality, less hardy, and good for smaller engines. And keep in mind, the low-quality oil shortens your lawn mower life.

How Often Should You Change Lawn Mower Oil?

Lawn mowers are a necessary evil for most homeowners. Though they provide a way to keep the grass trimmed and looking neat, they can be quite a pain to operate and maintain. One of the most important things to remember when it comes to lawn mower maintenance is to change the oil often. Many professionals recommend changing the oil in your lawn mower every 20-50 hours of operation. For most people, this means that if you change your oil once every spring and fall, you should be good to go.

Changing the oil is not a difficult task, but it is important that you do it correctly. Make sure that you have the right type of oil for your particular model of lawn mower, and follow the manufacturer’s instructions closely. Most importantly, remember to dispose of the old oil properly.

Tips For Changing The Oil In Your Lawn Mower

Changing the oil in a lawn mower is one of the most common maintenance tasks that homeowners are asked to perform. Here are some tips on how to do it.

  1. Stop the lawn mower engine.
  2. Unscrew and wipe up the dipstick with clean rags.
  3. Replace the dipstick and pull it out.
  4. See the oil level. If it is lower than the adding mark then add the fresh oil. And then rechek again to confirm the oil level for work.


Can You Use Motorcycle Oil in A Lawn Mower?

Motorcycle oil is not the same as lawn mower oil. Regular motor oil is made to lubricate and protect the engine components of a motorcycle. Also, the grade of motor oil is different from that of mowers. Lawn mower oil is made to lubricate the engine and blades. It is important to use the correct type of oil in avoid damage to the engine.

Can You Use 10w40 Oil in A Lawn Mower?

The answer to this question is yes, you can use 10w40 oil in a lawn mower. However, you should always consult your owner’s manual to see what type of oil is recommended for your specific model. It is important to use the correct type of oil in your lawn mower, as using the wrong type of oil can damage the engine.

Can I Use Synthetic Car Oil in My Lawn Mower?

You can use synthetic car oil in your lawn mower. In fact, it’s often recommended by experts because it has a longer lifespan than traditional motor oil. It also doesn’t evaporate as quickly, meaning you’ll have to change it less frequently.


The oil in your lawn mower needs to be clean and of high quality in order for the machine to function properly and last longer. You can use motor oil in a lawn mower, but you need to make sure it is the right kind of oil. The wrong type of oil can cause damage to the engine and shorten the life of your lawn mower.

A majority of mechanics will recommend SAE30 oil for both cars and lawn mowers. However, it is always important to check with your manufacturer or dealer to be sure that this type of oil is the best choice for your equipment.

Photo of author
Written By
Desmond J.
I'm a lawn mowing expert and gardening enthusiast. I started my own lawn care business in college and have been doing it ever since. I love taking care of lawns and gardens, and I'm always looking for new ways to improve my skills. I'm also a big fan of composting and using natural fertilizers.

Leave a Comment