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Valkyrie Riders Cruiser Club > General > 1500 Tech Board > Do I really need to...
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biguglyman
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Posts: 579


"AN ARMED SOCIETY IS A POLITE SOCIETY"

Brockport, NY


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« on: July 27, 2015, 12:37:10 PM »
...buy a whole new can of brake fluid? Bought a big one a few months ago to bleed the clutch. Still got plenty left and want to bleed the brakes.  I know...it's only $xx, but I hate to waste all I got left...
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BF
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Fort Walton Beach, Florida I'm a simple man, I like pretty, dark haired woman and breakfast food.
« Reply #1 on: July 27, 2015, 12:53:38 PM »
Brake fluid is hydroscopic.  It absorbs moisture from the atmosphere. 

Do you really want to take the chance?

Buy another bottle....it's not that expensive. 
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I can't help about the shape I'm in
I can't sing, I ain't pretty and my legs are thin
But don't ask me what I think of you
I might not give the answer that you want me to
 
Ricky-D
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Posts: 5031


South Carolina midlands
« Reply #2 on: July 27, 2015, 02:41:36 PM »
Naw, If you has the cap on tight, you're good to go. It takes a long time for it to absorb water and it will change color to brown as it goes. If it's nice and sparkly looking clear and clean, it will be fine to use. Don't take all those scare comments to heart, always remember they have no problem spending your money.

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2000_Valkyrie_Interstate
Gryphon Rider
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Posts: 5227


2000 Tourer

Calgary, Alberta
« Reply #3 on: July 28, 2015, 06:25:52 AM »
I wouldn't get too excited about a few months sealed on a shelf.  If it was a concern, then we should be changing our brake/clutch fluids every few months as well.
And the word for something that absorbs moisture from the air is hygroscopic, not hydroscopic.  A hydroscope is a device for viewing underwater objects.
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BobB
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One dragon on the tail of another.
« Reply #4 on: July 28, 2015, 08:31:44 AM »
Everything mentioned above is good advice.  I'll just add that it may be better to buy DOT4 fluid in smaller containers, especially if your concerned about shelf life once opened.  That's what I do...
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Gryphon Rider
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Posts: 5227


2000 Tourer

Calgary, Alberta
« Reply #5 on: July 28, 2015, 09:07:48 AM »
Quote from: BobB on July 28, 2015, 08:31:44 AM
Everything mentioned above is good advice.  I'll just add that it may be better to buy DOT4 fluid in smaller containers, especially if your concerned about shelf life once opened.  That's what I do...

Yeah, one small container does both brakes and clutch with a little left over.
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biguglyman
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"AN ARMED SOCIETY IS A POLITE SOCIETY"

Brockport, NY


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« Reply #6 on: July 28, 2015, 01:20:50 PM »
Stuff I bought says DOT 3 and 4.
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RonW
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Posts: 1867

Newport Beach
« Reply #7 on: July 28, 2015, 02:11:06 PM »
biguglyman, what's the time stamp on the bottle that you bought? When the brake fluid was bottled at the factory? An unopened plastic container doesn't provide a 100 percent hermetical seal. The contents absorbs moisture through the plastic.

Yes, *hygroscopic*.
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2000 Valkyrie Tourer
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