Question: Do you leave antifreeze in boat engine?

Let the engine warm up to operating temperature, so the thermostat will open and let coolant circulate through the entire engine. Warming the engine up is important, as it also lets the fuel stabilizer circulate through all fuel lines plus the carburetors or injectors.

Do you have to use antifreeze to winterize a 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. … If you have a simple boat with few systems, you shouldn’t need it.

Can you use RV antifreeze in a 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.

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Should I leave my outboard motor up or down?

When you park the boat for the winter keep the motor trimmed or tilted down, especially if it’s outdoors. This will allow all of the water to drain out of the motor’s cooling system. If it’s tilted up, some water may remain in the motor, where it can freeze and cause a cracked block or a ruined water pump housing.

How do you drain antifreeze from a boat engine?

Pour RV antifreeze directly into the thermostat opening or into the large hose attached to it. Keep pouring until you see a steady stream of the pink stuff running out of the block drain plug. Tip the trailer up (so it drains well) and place a bucket under the hull drain plug.

What happens if you don’t winterize your boat?

If You Don’t Winterize Your Boat, Here’s What Happens. Water freezes and expands and can damage anything it’s trapped inside. Water may seep into unprotected spaces to do this. … Mold and mildew take root, and you may come back to a boat in the spring that you can not use because of multiple system failures.

How cold does it have to be for a boat engine to freeze?

Until the internals reach 30 degrees the water will not freeze solid even if it is pure fresh water. If it has any impurities or salt it will not freeze solid until 28 degrees or below.17 мая 2007 г.

What is the difference between RV antifreeze and marine antifreeze?

RV antifreeze is designed to be pumped into the plumbing system of an RV and is therefore non-toxic, like marine antifreeze. In contrast, auto antifreeze is toxic and should not be used in your boat engine. … This is something to bear in mind when choosing RV antifreeze for use in your boat.

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What is the problem with using your boat’s engine to drive it onto a trailer?

NOTE – While many people drive the boat onto the trailer, it isn’t advised. Using the engine to assist trailering erodes the ramp bed, can lead to debris being sucked into the engine, and can cause an accident! Make sure you drain all water from the boat – the bilge, the live well, the trailer lights, etc.

How do you winterize a boat engine?

How to Winterize a Boat

  1. Start by prepping your engine; ensure all water has been drained and removed.
  2. Apply corrosion protection to your engine.
  3. Consult your owner’s manual for specific instructions, and complete fogging, if needed.
  4. Add a fuel-stabilizing additive to your fuel system; then run the engine.

Will a boat motor freeze at 27 degrees?

What Temperature Will Water Freeze In Engine. … Saltwater freezes typically at temperatures below 27 degrees Fahrenheit. A freshwater, anti-freeze cooled engine would only have some raw water in the oil cooler and the heat exchanger. A boat left in the water overnight should be okay.

Do outboard motors need to be winterized?

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. This project is simple enough to do yourself with the right tools, products and a bit of education.

Is it bad to run an outboard engine at full throttle?

As long as you are propped correctly and can hit the upper end of the RPM range, [to run an engine at its maximum throttle all the time] is not a problem. Most smaller engines have two speeds, OFF and WOT. Very rarely does an engine wear out. Keep up with maintenance and you will be fine.

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How often should you flush your boat engine?

every six weeks

How many gallons of antifreeze does it take to winterize a boat?

Adding Antifreeze and Fogging Oil to an Inboard engine

Warm the engine up to operating temperature, just like with a sterndrive. Instead of using a winterizing kit, you’ll need a five-gallon bucket, and enough antifreeze for your engine and related plumbing (at least two gallons).

Do I need to winterize my boat if I keep it in the garage?

Of course, as BOATUS states, the best winter storage space for your boat is “indoors, in a climate‑controlled facility with a backup generator.” This means that you need control over the temperature in your garage. A good garage door that seals out the cold will help keep your boat safe over the winter.

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