Do outboard motors need Antifreeze?

Do I have to put antifreeze in my boat?

Do you have to use antifreeze when you winterize your boat? 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.

Do boat engines use antifreeze?

Most newer marine engines use an enclosed cooling system. This means that there is a small tank on the top of the engine that uses a combination of fresh water and coolant. This fresh water is circulated through the engine and through a heat exchanger.

Will an outboard motor freeze?

A very popular question asked by a concerned boat owner, (mainly outboard motorboats) is Will A Boat Motor Freeze? The simple answer is yes. If the temperature is low enough, it can freeze. Water, oil and other engine related lubrication coupled with freezing temperatures is the main culprit for freezing a boat motor.

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How do you winterize a boat with an outboard motor?

Winterizing Your Outboard Motor

  1. Drain the crankcase oil (Four-stroke motors)
  2. Install a new oil filter (Four-stroke motors)
  3. Filling the crankcase with new oil (Four-stroke motors)
  4. Changing the lower unit gear oil.
  5. Stabilizing the fuel.
  6. Flushing the outboard with antifreeze.
  7. Fogging the cylinders.

Can you winterize boat with regular antifreeze?

Fill a five-gallon bucket with undiluted non-toxic antifreeze. Have additional antifreeze handy if you know your boat takes more than that or if you’ve never winterized before. You can use any leftovers in the boat’s plumbing systems.

Can I use RV antifreeze in my boat engine?

RV antifreeze and marine antifreeze are chemically the same. For most parts of winterizing your boat, RV antifreeze can absolutely do the job for a boat.

What antifreeze should I use for my boat?

Propylene Glycol is a Safer Choice

The chemical in antifreeze that resists freezing is either ethylene glycol (EG) or propylene glycol (PG). Ethylene glycol makes a good antifreeze/coolant, but it’s a poison that’s deadly to pets and wildlife and makes disposal problematic.

Do you need to winterize a 4 stroke outboard motor?

Like inboards and sterndrives, outboard engines are also subject to potential damage from freezing and from being laid up in disuse for months at a time. So outboards demand winterizing too.

Should you winterize an outboard boat motor?

Winterizing is Really Important

Correctly preparing your outboard motor for the off-season will help insure that it’s ready to go next spring. In cold climates, freezing weather can cause costly damage to an engine that isn’t winterized properly.

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How cold is too cold for an outboard motor?

Unwinterized boat engines can freeze any time the air temperature is below 28°F (-2°C) – for an extended period. Freshwater cooled engines without proper coolant can freeze below 32°F (0°C). The good news is you can prevent freeze damage fairly easily.

At what temperature should I winterize my boat?

As a general rule, you should look to winterize your boat before the temperatures drop below 25 degrees Fahrenheit, approximately -3 degrees Celsius.

Do you have to winterize a 2 stroke outboard motor?

Winterizing any piece of power equipment is an important step in ensuring it is ready for the next season. Your 2-stroke outboard boat motor is not exception. It’s very easy and only takes about 20 minutes to get it ready for the off season.