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Fueling Efficiency: Choosing the Best Gas for Your Push Mower

Best Gas Push Mower 2024 - Vinni Jessalin

Keeping your push mower running smoothly requires more than just regular sharpening the blade. The type of fuel you use plays a crucial role in performance, longevity, and environmental impact. This blog post will delve into the best gas options for your push mower, ensuring a healthy lawn and a happy machine.

Understanding Fuel Grades:

Most gas stations offer various gasoline grades, typically denoted by octane rating. Octane rating indicates a fuel's resistance to engine knocking, which can damage internal components. However, octane rating doesn't necessarily translate to better performance in small engines like those found in push mowers [Source: https://www.briggsandstratton.com/na/en_us/support/videos/browse/how-to-choose-fuel-for-your-mower.html].

The Case for Ethanol-Free Gas:

Many push mowers utilize small, single-cylinder engines that are more susceptible to the drawbacks of ethanol-blended gas. Ethanol, a common biofuel additive in gasoline, can attract moisture, leading to corrosion in the fuel system and potential engine damage during storage [Source: https://www.troybilt.com/en_US/knowledge-tb-how-to-select-the-right-fuel-for-your-outdoor-power-equipment.html]. Here's why ethanol-free gas might be a better choice for your push mower:

  • Reduced Corrosion Risk: Ethanol-free gas eliminates the risk of ethanol-induced corrosion in the fuel system, especially during periods of non-use.
  • Improved Storage Stability: Ethanol-free gas has a longer shelf life, making it ideal for seasonal use and reducing the need to drain fuel before storage.
  • Smoother Operation: Some users report smoother engine operation and easier starting with ethanol-free gas.

Ethanol-Blended Gas: Can It Work?

While ethanol-free gas offers advantages, most modern push mowers can run on gasoline blended with up to 10% ethanol (E10) according to the manufacturer's recommendations [Source: https://www.briggsandstratton.com/na/en_us/support/videos/browse/how-to-choose-fuel-for-your-mower.html]. Here are some things to consider with ethanol-blended gas:

  • Freshness Matters: Ethanol-blended gas can degrade faster than ethanol-free gas. Use fresh fuel whenever possible to minimize performance issues.
  • Storage Considerations: If you plan on storing your mower for extended periods, it's advisable to drain the fuel tank to avoid potential problems caused by ethanol breakdown.

Choosing the Right Octane:

Most push mower engines are designed to run on regular unleaded gasoline with an octane rating of 87 (87 AKI). Using higher octane gas like 91 (91 AKI) won't improve performance and is simply a waste of money for small engines [Source: https://www.briggsandstratton.com/na/en_us/support/videos/browse/how-to-choose-fuel-for-your-mower.html].

Finding Ethanol-Free Gas:

Ethanol-free gas can be slightly more expensive than ethanol-blended gas. Here's where to find it:

  • Small Engine Fuel Suppliers: Many lawn equipment dealers and small engine repair shops sell ethanol-free gas specifically formulated for outdoor power equipment.
  • Specialty Gas Stations: Some gas stations offer ethanol-free gas options. Look for pumps labeled "ethanol-free" or "recreational fuel."

Conclusion:

The best gas for your push mower depends on your usage habits and storage practices. Ethanol-free gas offers several benefits for small engines, but ethanol-blended gas (up to E10) is also a viable option if used fresh and stored properly. Following the manufacturer's recommendations for fuel type and octane rating is crucial for optimal performance and engine longevity. By choosing the right fuel, you can ensure your push mower runs smoothly, efficiently, and lasts for years to come.

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