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Old 10-05-2007, 08:05 AM
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Default Anti-Freeze

What type of anti-freeze do you use when you winterize? Car or RV ?
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Old 10-05-2007, 08:13 AM
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Default Re: Anti-Freeze

RV
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Old 10-05-2007, 08:19 AM
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Default Re: Anti-Freeze

Car, drain in the spring and reuse for next winterization.
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Old 10-05-2007, 10:20 AM
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Default Re: Anti-Freeze

RV for the water system, auto for the engines.
RV AF doesn't have any rust inhibitors to fight engine corrosion.
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Old 10-05-2007, 10:41 AM
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Default RE: Anti-Freeze

Never use Ethylene Glycol (car antifreeze) in a boat. First, if you spill it on the ground it can kill animals and children who will drink it because it tastes sweet. Second you can get a hefty fine for discharging it in the water OR on the ground.

Use marine antifreeze on raw water cooled engines (or the raw water side of a closed cooling system) if you must use antifreeze. A closed cooling system (I/O or Inboard) is different in that ethylene glycol is used on the closed side (like an automobile) and marine antifreeze is used for winterizing the raw water side.

I say marine antifreeze because it has the water pump lubricant and anti-corrosive ingredients already in it and it's non-toxic. Do not take RV anti-freeze and add automotive water pump lubricant and anti-corrosive ingredients because you will then make it toxic. The marine anti-freeze comes in three flavors: -50F, -60F and -100F. Remember, that is the freeze solid temperatures. It will turn to slush before that (which is harmless). Do check the label for the temperature it will protect PVC since that will be less.

Remember, air won't freeze. If you follow your manufacturers recommendation and drain all the drain points there will not be any water in your system to freeze. Make sure all drains are clear by using a coat hanger to clear them. You CAN backfill with anti-freeze after you drain if you wish. You only need to stand an O/B straight up to drain it and don't need anti-freeze.




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Old 10-05-2007, 01:22 PM
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Default Re: Anti-Freeze

Mole has a very good point..... A friend of mine just went through this with her dog. Her car was leaking anti freeze, the dog lapped some up and you can imagine the rest. She was very lucky and was able to save the dog by a rapid response to her vet and then to a specialist. Haven't heard how much THAT bill was but please be careful with that stuff.......
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Old 10-05-2007, 02:11 PM
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Default RE: Anti-Freeze

Quote:
mole2 - 10/5/2007 9:41 AM

Never use Ethylene Glycol (car antifreeze) in a boat. First, if you spill it on the ground it can kill animals and children who will drink it because it tastes sweet. Second you can get a hefty fine for discharging it in the water OR on the ground.

Use marine antifreeze on raw water cooled engines (or the raw water side of a closed cooling system) if you must use antifreeze. A closed cooling system (I/O or Inboard) is different in that ethylene glycol is used on the closed side (like an automobile) and marine antifreeze is used for winterizing the raw water side.

I say marine antifreeze because it has the water pump lubricant and anti-corrosive ingredients already in it and it's non-toxic. Do not take RV anti-freeze and add automotive water pump lubricant and anti-corrosive ingredients because you will then make it toxic. The marine anti-freeze comes in three flavors: -50F, -60F and -100F. Remember, that is the freeze solid temperatures. It will turn to slush before that (which is harmless). Do check the label for the temperature it will protect PVC since that will be less.
Correct, and anyone who advises to use auto antifreeze in a raw water cooled engine is incorrect (wrong). There's no practical way to recover used antifreeze from a raw water cooled engine.

Don't do it!
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