Best Outdoor Engines is reader-supported. When you buy through links on our site, we may earn an affiliate commission. Learn more

The Best oil for your Small Engine in 2025: Make a wise choice

Without a doubt, choosing the right oil is super important for your small engine, just important as choosing a friend to play with. Wrong oil prevents your machine from running at its peak. We’re here to show you which oil is the best for your small engine.

What to consider when choosing oil for your Small Engine

There are many factors to consider when choosing oil for your small engine. Referring to your manual is always a good start. However, the following are the main things to consider when choosing oil for your small engine:

  • The devices you are using
  • The climate you frequently use your devices in
  • Other qualities of the oil

However, through our experiences, we believe that there are certain oils that will be best for your devices. Check our list below if you don’t know what to start with

Suggestion for you

TOP Choice
1
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.7
  • Brand
    Briggs & Stratton
2
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.6
  • Brand
    Valvoline
3
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.3
  • Brand
    Pennzoil
4
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.5
  • Brand
    Pennzoil
TOP Choice
5
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.8
  • Brand
    Briggs & Stratton
6
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.8
  • Brand
    Royal Purple
TOP Choice
7
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.8
  • Brand
    Kawasaki
8
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.8
  • Brand
    Liqui Moly
TOP Choice
9
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.8
  • Brand
    Amazon Basics
10
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.8
  • Brand
    Castrol
11
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.5
  • Brand
    STP
12
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.6
  • Brand
    Valvoline
13
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.3
  • Brand
    Ariens
14
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.6
  • Brand
    Mobil 1
15
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.6
  • Brand
    Pennzoil
16
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.6
  • Brand
    Mobil
17
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.6
  • Brand
    Quaker State
18
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.6
  • Brand
    Pennzoil
19
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.6
  • Brand
    Pennzoil
20
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.6
  • Brand
    Valvoline
21
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.6
  • Brand
    Valvoline
22
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.6
  • Brand
    Castrol
23
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.6
  • Brand
    Castrol
24
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.6
  • Brand
    Ford
25
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.6
  • Brand
    Valvoline
26
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.6
  • Brand
    Castrol
27
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.6
  • Brand
    Amazon Basics
28
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.6
  • Brand
    Castrol
29
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.6
  • Brand
    Pennzoil
30
  • BOE Score

    BOE Score is a ranking system developed by BestOutdoorEngines.com. BOE score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.4
  • Brand
    Shell Rotella

Last update on 2024-01-25 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API

The Best oil for Lawn mower’s Small Engine

Lawn mowers operate in unique conditions due to the nature of their task. They often work in dusty and outdoor environments, leading to potential debris buildup in the engine. Therefore, choosing an oil with effective detergent properties is essential. Detergent oils help prevent dirt and debris from accumulating within the engine, ensuring smoother operation and reduced wear over time.

If you live in a region with colder temperatures, it's crucial to choose an oil with good cold-start properties. Look for oils with lower "W" numbers in the viscosity rating (such as 5W-30), as they flow more smoothly in cold weather, allowing for easier startup. Conversely, in hot climates, prioritize oils with high-temperature stability to maintain proper viscosity and prevent breakdown under heat stress

Warm condition: Briggs & Stratton 100005 SAE-30W

With all of that put into consideration, we believe that Briggs & Stratton 100005 SAE 30W is the best type of oil for your Lawn mower’s small engine. The Briggs & Stratton 100005 SAE 30W can be used in warm weather, and it can consistently operate during warm conditions, which is the suitable time that you would be out in your garden for some sunlight.

Our Experience: we must say, we have a fondness for using SAE-30 oil in warm conditions with a trusty lawn mower. The viscosity of Briggs & Stratton 100005 SAE 30W is just right for ensuring smooth operation even in higher temperatures. When the sun is shining and the air is comfortably warm, this oil keeps the engine parts well-lubricated, reducing friction and wear.

 

Best for cold temperature: Briggs & Stratton SAE 5W-30 Synthetic

Briggs & Stratton SAE 5W-30 Synthetic oil is a versatile and effective choice for lawn mower engines, especially in very cold temperatures. This oil offers exceptional cold-weather starting, making it ideal for regions with harsh winters. Its "5W" rating indicates that it flows smoothly even in frigid conditions, ensuring easy startup and reducing wear on the engine during cold cranking. Briggs & Stratton SAE 5W-30 Synthetic oil provides the necessary protection to keep the engine running smoothly when temperatures drop. Whether you're dealing with icy mornings or chilly days, this oil ensures reliable performance and enhances the overall longevity of your lawn mower's small engine.

Our Experience: Using Briggs & Stratton SAE 5W-30 Synthetic oil in cold temperatures with a trusty lawn mower is a choice I've come to appreciate. When the air is crisp and chilly, this oil's low viscosity ensures that the engine starts up smoothly, even in the face of frosty mornings. It flows quickly to lubricate the engine parts, providing a protective layer that minimizes wear during those initial moments. I find a sense of satisfaction in the reliable performance of my mower, as the SAE 5W-30 oil works harmoniously with the cold weather to make every start effortless.

The Best oil for Snowblower’s Small Engine

For snowblower, you mostly use it during cold weather, so we’ll be highlighting which oil is the best during the cold weather, as well as giving out the most protection for your snowblower. We also consider which oil will make the best value for you. Here’s the list that we have tested for you:

Best for cold temperature: Ariens Company SAE 5W-30

Ariens Company SAE 5W-30 oil stands out as an exceptional choice for snow blowers, particularly in cold weather. With its "5W" viscosity rating, it excels in cold-weather conditions by maintaining its fluidity even at extremely low temperatures. This property ensures that the oil flows smoothly during cold starts, providing easy ignition and reduced wear on the engine components. For snow blowers operating in frosty environments, Ariens Company SAE 5W-30  oil offers the confidence of reliable performance, allowing the machine to start promptly and work effectively in the most challenging winter conditions.

Our Experience:  The harmonious relationship between Ariens Company SAE 5W-30 oil and the cold weather grants me the confidence that my snowblower will reliably clear my path without hiccups. As the snowflakes fall and the machine hums along, I'm reminded of the dependability of this combination, making a seemingly daunting winter task surprisingly manageable and even a touch enjoyable.

Best for Protection: Valvoline Synthetic SAE 5W-30

Valvoline Synthetic SAE 5W-30 oil takes engine protection to the next level, offering benefits beyond cold-weather starting. This oil's synthetic formulation provides superior protection at all temperature ranges, ensuring that the engine remains well-lubricated and safeguarded against wear and tear. Its advanced additives offer extended engine life, reduced friction, and enhanced resistance to oxidation.

Whether facing cold winter mornings or warmer temperatures, Valvoline Synthetic SAE 5W-30 consistently delivers optimal protection, making it an excellent choice for those who prioritize overall engine health and longevity.

Our experience: With the snowblower roaring to life, I can feel the confidence that this oil brings, guarding the engine components against wear, friction, and corrosion. The synergy between Valvoline Synthetic SAE 5W-30 and the icy environment exemplifies a commitment to quality and longevity. Each pass of the snowblower becomes a testament to the durability and care this combination provides, allowing me to conquer winter's challenges with a dependable and powerful tool.

The Best oil for Leaf blower

When considering oil options for a leaf blower, it's crucial to align your choice with various weather conditions, overall protection needs, and value considerations. By selecting oils tailored to specific weather conditions, prioritizing engine protection, and considering budget factors, you can make an informed choice that supports your leaf blower's performance and longevity. We also bring you a new kind of option: Flexibility

Flexibility: STP Premium SAE 10W-30

STP Premium SAE 10W-30 oil offers the most flexibility due to its versatile viscosity characteristics, making it well-suited for a wide range of temperature conditions. This oil has excellent flow properties even in colder temperatures, ensuring smooth cold starts and effective lubrication during chilly mornings or transitional seasons. It also maintains stable viscosity under higher operating temperatures, providing consistent protection during warmer weather. 

This combination of cold-start capability and high-temperature stability allows STP Premium SAE 10W-30 oil to perform effectively across varying temperature ranges. As a result, it offers adaptability for leaf blowers used in regions with fluctuating climates, providing reliable operation whether faced with cold snaps or heatwaves.

Review from a customer: As I clear leaves and debris from my outdoor spaces, the leaf blower's reliable performance powered by STP Premium SAE 10W-30 underscores the importance of adaptability. This pairing allows me to tackle yard work with ease, appreciating the seamless transition from one task to another without being hindered by temperature fluctuations.

Best for moderate weather and Value: Pennzoil Conventional 10W-30

For leaf blowers used in regions characterized by moderate weather and those looking to balance performance and cost-efficiency, Pennzoil Conventional 10W-30 oil provides a practical and reliable solution. This oil emerges as the optimal choice for leaf blowers in moderate weather conditions due to its well-balanced viscosity properties. It maintains consistent viscosity under typical operating temperatures, ensuring reliable engine performance without becoming too thick or thin. This stability makes Pennzoil Conventional 10W-30 well-suited for moderate weather, where extreme temperature fluctuations are less common. Additionally, Pennzoil Conventional 10W-30 provides an advantageous blend of performance and value. It offers essential engine protection while being a cost-effective option, making it particularly attractive for users who seek reliable operation without exceeding their budget. 

Our Experience:  Its consistent viscosity ensures proper lubrication and smooth operation of the leaf blower's engine, allowing me to tackle yard tasks without interruption. This choice represents an appreciation for simplicity and cost-effectiveness, as Pennzoil Conventional 10W-30 provides the necessary protection at an affordable price point

The Best oil for Pressure Washers

When it comes to keeping your pressure washer engine running smoothly and efficiently, choosing the right oil is paramount. The right oil not only ensures proper lubrication but also contributes to engine protection and overall performance

Whether you're tackling tough cleaning tasks in hot weather or navigating varying temperature ranges, understanding the qualities of each oil will empower you to make an informed decision for the well-being of your pressure washer's engine

Hot weather: Pennzoil Synthetic SAE 5W-30

When it comes to pressure washer engines operating in hot weather, Pennzoil Synthetic SAE 5W-30 oil takes the lead. Specifically formulated for demanding conditions, including high temperatures, this oil delivers top-notch overall protection. With its "5W" viscosity rating, it excels in both cold starts and maintains its strength in the face of hot weather challenges. Engineered to combat the effects of heat, friction, and oxidation, Pennzoil Synthetic SAE 5W-30  oil is the optimal choice for ensuring consistent and reliable performance for your pressure washer even under scorching conditions.

Our Experience: When the temperature rises and the demand for cleaning intensifies, Pennzoil Synthetic SAE 5W-30  oil's synthetic composition proves invaluable. Its advanced formulation maintains stability even in high temperatures, ensuring optimal lubrication for the pressure washer's engine.

 

Hot-cold Balance: Kawasaki SAE 10W-40

Another suitable option for pressure washer engines is Kawasaki SAE 10W-40 oil. This oil offers a balance between cold-start performance and high-temperature stability, making it adaptable to varying weather conditions. Kawasaki SAE 10W-40 oil is particularly well-suited for pressure washers used in regions with moderate to warm climates, where temperature fluctuations are common. It offers reliable engine performance and durability, making it a viable alternative for maintaining your pressure washer's optimal operation.

Our Experience: Striking the perfect balance between hot and cold conditions,Kawasaki SAE 10W-40 oil is an ideal choice for a pressure washer. When the weather fluctuates, this oil's unique viscosity characteristics shine. It ensures smooth engine start-up during colder times, while also providing stable lubrication under the heat of intense usage. As I take on various cleaning tasks in varying temperatures, the pressure washer's dependable performance powered by Kawasaki SAE 10W-40  oil showcases the importance of adaptability

Conclusion

In conclusion, choosing the best oil for your small engine is a critical decision that impacts its overall performance and durability. Consider factors such as temperature conditions, engine type, and manufacturer recommendations when selecting the oil that suits your needs. Synthetic oils provide advanced protection, making them ideal for demanding conditions, while conventional oils offer reliable basic protection. Regular oil changes and adhering to manufacturer guidelines will ensure that your small engine continues to operate smoothly and efficiently for years to come.

FAQs

1. How often should I change the oil in my small engine?

The frequency of oil changes depends on the manufacturer's recommendations and your usage. As a general guideline, changing the oil every 25-50 hours of operation or at the beginning of each season is advisable. Regular oil changes ensure optimal engine performance and longevity. If you want to understand how often you should do it and why, we recommend you to check it here

2. Can I use automotive oil in my small engine?

It's recommended to use oil specifically formulated for small engines. Automotive oils may not have the additives necessary to protect small engines under various operating conditions. Always refer to the manufacturer's guidelines for the appropriate oil type and viscosity.

3. What's the difference between synthetic and conventional oil for small engines?

Synthetic oil is engineered with advanced additives and tailored molecules for enhanced protection and performance. It offers better resistance to high and low temperatures, reduces friction, and extends engine life. Conventional oil is suitable for basic protection but may not offer the same level of performance as synthetic oil

3.3
3 ratings
Lucas Wilson
WRITTEN BY
Lucas Wilson
Hey there, Lucas Wilson is here. I started out fixing cars but then got really into fixing smaller engines. Whether you're trying to fix a lawnmower or just curious about how things work, I'm here to help make it easy and fun.