Do you need to winterize an inboard outboard motor?

If you’ve got an inboard or a sterndrive (inboard/outboard) boat motor, then winterizing is an absolute must-do. This process prevents gunk from building up, keeps condensation out of the fuel tank and just overall keeps your engine healthy.

How do you winterize an inboard outboard boat?

How To Winterize an Inboard Boat

  1. Warm the Engine to Winterize Inboard Boat.
  2. Fill the Tank to Winterize Your Inboard Boat.
  3. Add Antifreeze to Winterize Your Inboard Boat.
  4. Spray the Engine with Fogging Oil.
  5. Winterize Your Boat with an Oil Change.
  6. Clean & Spot Check Everything.
  7. Store Your Boat with SecurCare Self Storage.

How do you winterize a Mercruiser inboard outboard?

Winterizing Your Gas Inboard or Sterndrive

  1. Clean Fuel and Clean Filters.
  2. Adding Antifreeze.
  3. Putting in the Antifreezeā€”Sterndrives.
  4. Fogging the Engine.
  5. Adding Antifreeze and Fogging Oil to an Inboard engine.
  6. Changing the Engine and Transmission Oil.

Do you need to put antifreeze in an inboard motor?

You should use antifreeze to winterize your boat if you have an inboard engine or any systems with pipes or that carry water. You should also consider using it in your bilge. For outboard motors, you don’t have to use antifreeze.

How cold does it have to be to crack a boat engine block?

In a boat engine, turning a crank at a temperature of 25 degrees Fahrenheit (-3 degrees Celsius) may cause the engine block to crack.

How do I keep my inboard boat motor from freezing?

Run the inboard motor on idle (just above neutral reps) for a little while to get it warm. As soon as the engine is warm add fuel stabilizer into the fuel tank. Continue running for about 10-15 minutes. Keep low reps just above neutral at all steps when running the motor.

Should you run antifreeze through outboard?

You do not need to run antifreeze through an outboard, period. They’re designed to drain completely in the tilted-down position, and do not need an ounce of antifreeze.

Where do you put antifreeze when winterizing a boat?

For those drives, warm up the engine with the muffs, then use a five-gallon bucket of antifreeze plumbed to the muffs and run the engine until it’s all been run through. Afterward, all outdrives should be stored in the down position to prevent water from entering the exhaust hub of the propeller.

At what temperature will an engine block crack?

An engine block will crack if exposed at Temperatures reaching 25 degrees Fahrenheit (3 degrees Celsius) to the elements.