How to Winterize Your STIHL Mowers

As the seasons change and the weather turns colder, it’s time to start thinking about winterizing your STIHL landscaping equipment, including your STIHL mowers. Doing so will help ensure that your equipment will be ready for action once the weather warms back up and yard work begins again. Here are some tips on how to winterize your STIHL mowers.

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General Winterizing Tips

Check your specific mower’s instruction manual for details about how to properly store your mower. Visit your local STIHL Dealer for tips or if you need help with mower maintenance.

Here are some general winterizing tips for STIHL mowers:

Remove fuel and store your mower dry.

Clean your mower.

  • Cover air cleaner and exhaust outlets to keep moisture, dirt, and insects out of the engine.
  • Brush away mud, grass, and debris.
  • For a walk-behind mower, gently tip and clean blades with a sprayer or a tool. Check the manual on how to clean the blades.

More specifically:

  • The air filter, the cylinder fins, the spark plug, and the blades should be checked and cleaned.
  • The spark arresting screen in the muffler should be cleaned or replaced with a new one.
  • Apply paint or rust preventative to any areas where paint is chipped or damaged.

Winterizing Your RMA Mower

As the seasons and your mowing habits change, it’s important to take proper care and maintain your STIHL mower. Follow the steps below as you prepare to store your mower for the winter to ensure an easier start to the next mowing season. For more detailed instructions, see your RMA mower’s instruction manual.

  • Remove the battery and store. Here are some battery storage tips.
  • Remove fuse key.
  • Remove grass bag.
  • Clean the machine.
  • Lubricate moving parts with oil or grease.
  • Store in a cool, dry place.

Winterizing Your iMOW® Mower

They may mow the lawn for you, but your RMI mower still requires care before being stored for an extended period of time. Here are some tips on storing your RMI mower. For more detailed instructions, see your RMI mower’s instruction manual.

  • Fully charge the battery before storage.
  • Switch off automatic mowing.
  • Set the highest security level.
  • Activate the disabling device.
  • Clean the mower.
  • Disconnect the docking station.
  • Dock in the docking station.
  • Store both in a dry, secure location.
  • Protect terminals removed from the docking station by wrapping them with insulating tape or storing them in a container with grease.
  • Follow the directions in the instruction manual for storing your docking station.

Winterizing Your STIHL RZ Mower

Owning a STIHL RZ mower is an investment in the long-term care of your lawn and landscape. Before retiring your STIHL RZ mower for the season, make sure you follow these steps and directions shared in your model’s instruction manual to ensure your zero-turn mower is ready for action next spring:

  • Empty fuel from fuel tank and lines. Run mower to use up remaining fuel.
  • Disengage the PTO, lock the ground speed control levers in neutral position, turn ignition switch to Off, and remove key.
  • Remove battery and store. Here are some battery storage tips.
  • Clean debris from the unit and engine compartment.
  • Apply paint or rust preventative to any areas where paint is chipped or damaged.
  • Change engine oil while the engine is still warm.
  • Follow any model-specific storage instructions according to your instruction manual.

STIHL Mower Oils and Lubricants

Keep your mower’s engine in top working condition throughout the year by using a quality fuel and cleaner/degreaser from STIHL.

STIHL Moto4™ is a premium ethanol-free, high-octane fuel formulated for ultimate four-cycle engine performance.

Keep your machine clean with the STIHL cleaner/degreaser, which is ideal to clean grease, dirt, oil, and wax from engine and mower components, as well as cleaning various other items.