Introduction
May marks the transition from autumn to winter in New Zealand, bringing shorter days, cooler temperatures, and increased rainfall. For outdoor power equipment owners, this is the perfect time to prepare your gear for the winter months ahead.
Winter preparation isn't just about storage — it's about protecting your investment and ensuring your equipment is ready when you need it most. From chainsaws and lawn mowers to battery tools and ride-on equipment, proper winterization prevents corrosion, fuel degradation, and mechanical issues.
This comprehensive guide covers everything you need to know about preparing your outdoor power equipment for the Kiwi winter.
Why Winter Preparation Matters
New Zealand winters can be harsh on outdoor equipment. Cold temperatures, high humidity, and frequent rain create perfect conditions for rust, corrosion, and mechanical problems.
Common Winter Equipment Issues
- Fuel degradation in petrol tools stored with old fuel
- Battery drain in electric and battery-powered equipment
- Corrosion on metal parts exposed to moisture
- Frozen components that crack or break when temperatures drop
- Pest damage from rodents seeking shelter in stored equipment
Proper preparation addresses these issues before they cause expensive damage.
Petrol Equipment Winterization
Petrol-powered tools need special attention before winter storage.
Fuel System Care
- Run the tank dry: Start equipment and let it run until fuel is exhausted
- Use fuel stabilizer: Add stabilizer to any remaining fuel to prevent degradation
- Clean carburettor: Remove and clean to prevent gum buildup
- Check fuel lines: Inspect for cracks or deterioration
Engine Protection
- Change oil: Fresh oil prevents corrosion inside the engine
- Clean air filter: Replace if dirty to ensure proper airflow
- Remove spark plug: Spray fogging oil into cylinder for protection
- Store upright: Keep equipment level to prevent oil leaks
Battery Equipment Storage
Battery tools require different winter preparation than petrol models.
Battery Care
- Full charge before storage: Store batteries at 100% charge
- Cool, dry location: Keep batteries between 5-20°C
- Regular charging: Top up every 3-4 months during storage
- Clean contacts: Wipe battery terminals to prevent corrosion
Tool Preparation
- Clean thoroughly: Remove all dirt, grass clippings, and debris
- Lubricate moving parts: Apply light oil to prevent rust
- Store indoors: Keep in a dry, temperature-controlled space
- Remove batteries: Store batteries separately from tools
Chainsaw Winter Preparation
Chainsaws need extra care due to their complex cutting systems.
Chain and Bar Care
- Remove and clean chain: Soak in cleaning solution, then oil
- Sharpen chain: Ensure it's sharp for next season's use
- Clean bar groove: Remove debris and apply bar oil
- Check tension: Adjust chain tension to prevent damage
Saw Body Maintenance
- Clean air filter and housing: Remove sawdust and debris
- Grease sprocket: Apply fresh grease to prevent wear
- Check safety features: Test chain brake and other safety systems
- Store properly: Hang or store in a protective case
Lawn Mower Winter Storage
Ride-on and push mowers need comprehensive winter preparation.
Cleaning and Protection
- Thorough cleaning: Remove all grass clippings and debris
- Deck inspection: Check for rust and apply protective coating
- Blade sharpening: Sharpen or replace blades for next season
- Cable lubrication: Oil control cables to prevent freezing
Long-term Storage
- Fuel treatment: Add stabilizer and run engine briefly
- Battery maintenance: Remove and charge mower batteries
- Tire care: Inflate tires to proper pressure
- Cover protection: Use a breathable cover to prevent moisture
Handheld Equipment Care
Blowers, trimmers, and other handheld tools also need winter attention.
General Preparation
- Clean thoroughly: Remove all plant material and dirt
- Inspect for damage: Check for cracks or worn parts
- Lubricate: Apply oil to moving parts and cables
- Store hanging: Keep off concrete floors to prevent moisture
Specific Tool Care
- Trimmer heads: Clean and replace string if worn
- Blower tubes: Remove and clean air passages
- Hedge trimmers: Oil blades and clean cutting surfaces
- Pressure washers: Winterize pumps and hoses
Winter Maintenance Schedule
May (Early Winter Preparation)
- Clean and inspect all equipment
- Apply protective coatings
- Store batteries properly
- Treat fuel systems
June-August (Mid-Winter Checks)
- Check stored equipment monthly
- Top up battery charges
- Inspect for pest damage
- Clean any moisture buildup
September (Pre-Spring Preparation)
- Full equipment inspection
- Test all systems
- Replace worn parts
- Schedule professional servicing
Common Winter Storage Mistakes
Don't Make These Errors
- Storing with fuel: Always drain or stabilize fuel
- Damp locations: Never store in humid sheds or garages
- No protection: Don't leave equipment exposed to elements
- Forgetting batteries: Always remove and maintain batteries
- No lubrication: Metal parts need protection from moisture
Best Practices
- Use silica gel packs: Place in storage areas to absorb moisture
- Elevate equipment: Keep off concrete floors
- Label everything: Mark storage locations and maintenance dates
- Keep records: Track maintenance and servicing schedules
Professional Winter Servicing
While you can do much of the preparation yourself, professional servicing ensures thorough winterization.
What Professionals Check
- Internal components that you can't access
- Fuel system cleaning and carburettor adjustment
- Electrical system testing for battery equipment
- Safety feature calibration and testing
- Comprehensive lubrication of all moving parts
When to Book Service
- Before winter storage (May-June)
- If equipment has been heavily used
- For older equipment requiring more care
- When you're unsure about any maintenance steps
Winter Equipment Inventory
Take Stock Now
- List all equipment: Make an inventory of what you own
- Check warranties: Note which items are still covered
- Assess condition: Rate each item's current state
- Plan purchases: Identify what needs replacement
- Budget for maintenance: Set aside funds for servicing
Storage Planning
- Space assessment: Ensure adequate storage space
- Organization system: Plan how to store different items
- Access planning: Store frequently used items accessibly
- Safety measures: Keep dangerous tools secure
Emergency Winter Equipment
Even in winter, you might need some equipment for storm cleanup or essential tasks.
Keep Accessible
- Battery-powered tools: For quick, essential jobs
- Hand tools: Manual alternatives for small tasks
- Emergency supplies: First aid and safety equipment
- Contact information: Service provider details
Winter Usage Tips
- Warm equipment first: Let cold equipment warm up before use
- Use appropriate gear: Wear warm, protective clothing
- Work in daylight: Avoid using equipment in poor visibility
- Take breaks: Don't overexert in cold conditions
Winter equipment preparation is an investment in reliability and safety. By taking the time to properly winterize your outdoor power tools now, you'll save money on repairs, avoid safety issues, and ensure your equipment is ready when you need it most.
Don't wait until the first cold snap — start your winter preparation today. If you're unsure about any aspect of equipment winterization, our STIHL-certified technicians are here to help with expert advice and professional servicing.
Remember: proper preparation today means reliable performance tomorrow.

