Small engines power some of our most essential tools, from lawnmowers and snow blowers to generators. While these machines are built to handle tough tasks, they’re not immune to one of the most common issues that plagues engine owners: fuel degradation. This is where fuel stabilizers come in. Let’s explore how they work and why they’re a must-have for small engine maintenance.
The Problem: Fuel Degradation
Gasoline doesn’t last forever. Over time, exposure to air causes it to oxidize and break down, forming sticky residues and varnish-like deposits. These can clog carburetors, gum up fuel lines, and lead to hard starts or complete engine failure. In addition, ethanol-blended fuels (commonly found at most gas stations) attract moisture, which can lead to phase separation—a layer of water forming at the bottom of your fuel tank. This can corrode metal components and cause significant damage to your engine.
The Solution: Fuel Stabilizers
Fuel stabilizers are chemical additives designed to slow down the oxidation process and prevent the harmful effects of ethanol and moisture. They work by:
Inhibiting Oxidation: Stabilizers contain antioxidants that delay the chemical reactions that break gasoline down. This keeps the fuel fresh and usable for longer periods.
Preventing Moisture Absorption: Many stabilizers include components that combat ethanol’s tendency to attract water, reducing the risk of phase separation.
Protecting Against Corrosion: Stabilizers often contain corrosion inhibitors, which create a protective barrier on metal surfaces, safeguarding your engine from rust and corrosion.
Maintaining Fuel Combustion Quality: By preventing the formation of varnish and deposits, stabilizers help ensure the fuel burns cleanly, preserving engine performance and efficiency.
When to Use Fuel Stabilizers
Seasonal Equipment Storage: If you’re storing equipment like lawnmowers, trimmers, or snow blowers for more than 30 days, a stabilizer is essential to keep the fuel fresh and prevent gumming.
Intermittent Use: For equipment like generators or backup water pumps, where fuel may sit for weeks or months at a time, stabilizers can prevent fuel-related issues.
Protecting Premium Fuel: Even high-quality fuels benefit from stabilizers, especially in ethanol-blended options.
How to Use Fuel Stabilizers
Add to Fresh Fuel: Always mix the stabilizer into fresh gasoline to maximize its effectiveness. Follow the product’s instructions for the correct ratio.
Run the Engine: After adding the stabilizer, run the engine for a few minutes to circulate the treated fuel through the system.
Store Properly: Ensure your fuel tank is full to minimize air exposure, and store your equipment in a cool, dry place.
The Benefits for Small Engine Owners
Using a fuel stabilizer offers numerous advantages:
Easier starts after long periods of storage
Reduced risk of costly repairs caused by clogged fuel systems
Prolonged engine lifespan
Final Thoughts
Fuel stabilizers are a simple, cost-effective way to help
protect your small engine from the challenges of fuel degradation. Whether you’re storing seasonal equipment or maintaining a backup generator, incorporating a stabilizer into your routine can save you time, money, and headaches in the long run. For expert advice and high-quality products, visit Cumberland Power Equipment—we’re here to help keep your engines running smoothly all year long.
