Lawn Mower Maintenance and Storage Over the Winter

As winter approaches, (looks like it’s here and not too late), properly maintaining and storing your lawn mower ensures it starts easily and performs well come spring. Neglecting this can lead to issues like stale fuel gumming up the carburetor, rust from debris, or battery failure. Follow these steps for gas-powered, electric, or battery mowers—always consult your owner’s manual for model-specific advice.

1. Thoroughly Clean the Mower

Grass clippings, dirt, and moisture left on the mower can cause rust and corrosion over winter.

• Disconnect the spark plug (for gas mowers) or remove the battery (for electric/battery models) for safety.
• Scrape off debris from the underside of the deck using a putty knife or brush.
• Wash with a hose if needed, but avoid direct water on engines or bearings.
• Let it dry completely.

2. Handle Fuel (For Gas-Powered Mowers)

Old fuel is the top cause of spring startup problems. There are two main approaches:

• Add stabilizer: Fill the tank with fresh gas, add fuel stabilizer (like STA-BIL), run the engine for a few minutes to circulate it. This prevents degradation.
• Drain the fuel: Run the engine dry or siphon out the gas, then run until it stalls. Some manufacturers prefer this for long storage.

Avoid leaving untreated ethanol-blend gas in the tank, as it attracts moisture.

3. Change the Oil and Filter

Fresh oil removes contaminants that can corrode engine parts during storage.

• Run the engine to warm the oil.
• Drain old oil, replace the filter if applicable, and refill with fresh oil per your manual.

This is especially useful if you haven’t changed it recently—do it now for a fresh start in spring.

4. Battery Care

• For electric start gas mowers or battery-powered models: Remove the battery.
• Clean terminals, charge fully, and store in a cool, dry place (not on concrete floors—use a shelf).
• For cordless mowers, store batteries indoors at moderate temperatures.

5. Sharpen or Replace Blades and Other Maintenance

• Remove and sharpen blades for a clean cut next season.
• Check/replace air filter and spark plug.
• Grease fittings if your mower has them.

6. Proper Storage

• Store in a clean, dry, sheltered spot like a garage or shed.
• Cover the mower to protect from dust (use a breathable cover).
• Elevate if flood-prone; keep away from rodents (mothballs can help deter them).

By spending an hour or two on these steps now, you’ll avoid costly repairs and have your mower ready when grass starts growing again. If you’re unsure about any step, check resources from manufacturers like Briggs & Stratton, STIHL, or your mower’s brand. Happy winterizing! Any other tips?. Add a comment ❄️