Introduction to Lawn Mower Fuel Usage
SUCCESSFULLY operating a lawn mower typically requires the right type of fuel. Regular gasoline has been the industry standard for approximately a century due to its versatile use across various utility engines, including those found in lawnmowers. This article delves into the potential consequences of using regular gasoline without ethanol and the preventive measures that ensure optimal performance and longevity for your lawn mower.
What Happens When You Use Regular Gas in a Lawn Mower?
Typically, using regular gas (E-10) in a modern four-stroke lawnmower will not cause any immediate issues, as it is the approved fuel for most small four-cycle engines. However, the presence of ethanol in commercial gasoline can lead to several complications over time. Ethanol, when mixed with moisture from the air, forms corrosive compounds that damage the delicate components of the carburetor and fuel system, leading to malfunction and reduced performance.
Understanding Ethanol Damage in Small Engines
Approximately 70% of the problems faced by small utility engines can be attributed to deteriorated fuel, with ethanol being a significant contributor. Even a single tank of gasoline containing ethanol can initiate a chain of detrimental effects. These effects are cumulative, making it a practice to avoid using E-10 fuel for long-term storage and to run the engine until the fuel tank is empty for extended periods of non-use. The use of fuel preservatives offered by commercial suppliers is also highly recommended to mitigate these risks.
Comparison between 4-Stroke and 2-Stroke Engines
The different types of lawnmower engines further highlight the importance of proper fuel use. One of the historical norms was the use of 2-stroke engines, which required a specific fuel-to-oil mixture to prevent the pistons from seizing. Modern 2-stroke engines are relatively rare, but if you own one, it's imperative to use the oil/fuel mix as intended to prevent severe damage.
Preventive Measures and Recommendations
The occasional use of regular E-10 fuel may not cause significant harm, but it is advised to minimize such usage to prevent cumulative damage. Many lawn equipment service centers report that they deal with more service issues arising from ethanol-damaged fuel than any other single cause. Therefore, it's crucial to follow proper maintenance practices, such as running the engine until it is empty after using ethanol-based fuel and storing the mower without any fuel in the tank for extended periods.
Conclusion
To ensure the longevity and performance of your lawnmower, it is essential to use the correct type of fuel and follow maintenance guidelines. Regular E-10 fuel is acceptable for short-term use, but for best results and to avoid complications, use premium gasoline or store the mower with a recommended fuel preservative. This proactive approach will help maintain your lawn mower's efficiency and reduce potential repair costs.