A Guide to Selecting the Right Gasoline for Your Honda Lawn Mower

by Anna

Selecting the appropriate type of gasoline for your Honda lawn mower is crucial for ensuring optimal performance and longevity of your equipment. While it may seem like a straightforward task, choosing the right gasoline involves considering factors such as octane rating, ethanol content, and manufacturer recommendations. In this comprehensive guide, we will delve into the various aspects of gasoline selection for Honda lawn mowers, providing you with the knowledge needed to make an informed decision.


Understanding Octane Ratings:

Octane rating is a measure of a gasoline’s resistance to premature detonation or “knocking” in an engine. Most gasoline available at the pump comes in three octane ratings: regular (87 octane), mid-grade (89-90 octane), and premium (91-93 octane).


For Honda lawn mowers, which typically have small engines, regular unleaded gasoline with an octane rating of 87 is generally recommended. Using gasoline with a higher octane rating than recommended by the manufacturer is unnecessary and may not provide any tangible benefits in terms of performance or fuel efficiency. Conversely, using gasoline with a lower octane rating than recommended can lead to engine knocking and poor performance.

Ethanol Content:

Ethanol is a renewable fuel additive derived from corn and other plant materials. It is commonly blended with gasoline to reduce emissions and decrease dependence on fossil fuels. However, ethanol can have detrimental effects on small engines if present in high concentrations.

Most gasoline sold in the United States contains up to 10% ethanol (E10), which is generally safe for use in Honda lawn mowers and other small engines. However, some regions may offer gasoline with higher ethanol blends, such as E15 or E85. These higher ethanol blends are not recommended for use in Honda lawn mowers, as they can cause damage to engine components over time.

It’s essential to check the pump or consult with the gas station attendant to ensure that you are purchasing gasoline with the appropriate ethanol content for your Honda lawn mower. Using gasoline with ethanol concentrations higher than 10% can lead to corrosion, fuel system damage, and engine performance issues.

Manufacturer Recommendations:

Honda provides specific guidelines and recommendations regarding the type of gasoline to use in their lawn mowers. These recommendations are based on extensive testing and research to ensure optimal performance and reliability.

Before fueling your Honda lawn mower, refer to the owner’s manual or consult the manufacturer’s website for the recommended gasoline specifications. In most cases, Honda recommends using unleaded gasoline with an octane rating of 87 and containing no more than 10% ethanol (E10).

Following the manufacturer’s recommendations is crucial for maintaining your Honda lawn mower’s warranty coverage and preventing potential damage or performance issues. Deviating from these guidelines could void the warranty and result in costly repairs down the line.

Additional Tips for Gasoline Storage and Usage:

In addition to selecting the right type of gasoline, proper storage and usage practices are essential for maintaining fuel quality and prolonging the life of your Honda lawn mower.

Purchase Fresh Gasoline: Always use fresh gasoline to fuel your lawn mower. Gasoline that has been sitting in a storage container for an extended period can degrade and lead to starting difficulties and engine performance issues. Consider purchasing gasoline in small quantities that you can use within a few weeks.

Use Fuel Stabilizer: If you anticipate storing your Honda lawn mower for an extended period, consider using a fuel stabilizer additive. Fuel stabilizers help prevent gasoline from deteriorating and forming varnish and gum deposits in the fuel system, ensuring easy starting and reliable performance when you’re ready to use the mower again.

Store Gasoline Properly: Store gasoline in a clean, sealed container specifically designed for fuel storage. Keep the container in a cool, dry place away from direct sunlight and sources of heat or ignition. Avoid storing gasoline near chemicals, fertilizers, or other potentially hazardous materials.

Avoid Using Old or Contaminated Gasoline: If you suspect that gasoline has become contaminated with water or other impurities, do not use it in your Honda lawn mower. Contaminated gasoline can cause starting difficulties, engine misfires, and other performance issues. Dispose of old gasoline safely and refill your mower with fresh fuel.


Choosing the right gasoline for your Honda lawn mower is essential for maintaining optimal performance, reliability, and longevity. By understanding factors such as octane rating, ethanol content, and manufacturer recommendations, you can ensure that your lawn mower operates smoothly and efficiently season after season. Remember to consult the owner’s manual or manufacturer’s guidelines for specific recommendations, and follow proper storage and usage practices to maximize the lifespan of your Honda lawn mower.


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