What kind of brake fluid do you guys use? - Honda Rebel Forum
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post #1 of 28 Old 05-11-2017, 06:57 PM Thread Starter
 
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What kind of brake fluid do you guys use?

So i checked my brake fluid and I'm not really sure what I'm looking for, it's at the lowest level line should it be higher then this? I checked brakes they seem to still have a good amount on it correct me if I'm wrong.

I know to get dot 3 or 4 but i see so many kinds so not really sure if i should not got one kind because maybe it's synthetic or some other reason?
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post #2 of 28 Old 05-11-2017, 07:29 PM
 
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that dark amber color is bad news . You should change brake fluid every couple of years. New fluid has a light straw color, almost clear. Use DOT3 or DOT4 brake fluid only. Other types are not compatible.

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post #3 of 28 Old 05-11-2017, 08:33 PM Thread Starter
 
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Quote:
Originally Posted by Duckster View Post
that dark amber color is bad news . You should change brake fluid every couple of years. New fluid has a light straw color, almost clear. Use DOT3 or DOT4 brake fluid only. Other types are not compatible.
Thanks Duckster, what brand do you use on your rebel and where should the levels be at?

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post #4 of 28 Old 05-11-2017, 09:01 PM
 
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I use Moto-master The Canadian Tire house brand.. There is no such thing as a premium DOT 3 or DOT 4 brake fluid and no need to go looking for one. AFAIK its all the same stuff. There are level marks shown on the sight glass on the reservoir. Make sure the final fluid level is between the marks.

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post #5 of 28 Old 05-11-2017, 11:22 PM
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I'm gonna have to look closer on my Rebel sight glasses. I don't recall any of them having lines.

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post #6 of 28 Old 05-12-2017, 12:22 AM
 
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I use Walmart SuperTech brand. I use Dot 4. You can use Dot 3, the only difference between the two is Dot 4 has a higher boiling point. Not likely necessary on a small lightweight bike like a Rebel. Dot 4 is considerably more expensive than Dot 3, but for such a small amount it really doesn't make much difference. Since the advent of Dot 4, most manufacturers specify it, whether it is needed or not. Dot 3 and Dot 4 are completely compatible, so you can use either one. I change The brake fluid in my bikes every 2 years, every 5 years in cars. There should be a tiny little bubble at the top of the sight glass. The reservoir should not be completely full. Brake fluid makes pretty good paint remover, so keep that in mind when working with it.

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post #7 of 28 Old 05-12-2017, 12:28 AM Thread Starter
 
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Thanks everyone, i saw the word synthetic on some of the bottles and had to make sure it was okay to use it.

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post #8 of 28 Old 05-12-2017, 12:56 AM
 
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Just don't use Dot 5. It is silicone based and is not compatible with any other type. I wouldn't be too concerned about synthetic. Regular brake fluid has worked fine for 100 years. Just get any brand of Dot 3 or Dot 4. Dot 5.1 is also compatible with 3 and 4, but I have never seen it before. These fluids are glycol-ether based.

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post #9 of 28 Old 05-12-2017, 01:06 AM Thread Starter
 
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Thanks from what i can tell it should be an easy job.

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post #10 of 28 Old 05-12-2017, 01:38 PM
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I usually empty the reservoir first with a bulb type vacuum pump like a turkey baster. Put the removed fluid in a clean jar of some type to be repurposed as explained below.

Wipe out any crud or settings from the reservoir until it is clean.

Then fill the reservoir with fresh fluid from a newly opened container. Never use fluid from a previously opened container as it is hygroscopic (absorbs moisture from the air). I recommend Dot 4 of any brand, and synthetic is just a marketing ploy. It is all synthetic, and either it is Dot 4 or it is not.

Connect a rubber hose to the bleed port, and place the other end in the old fluid in the jar. Then open the bleed port and start pumping the brakes. If you keep the end of the hose in the old fluid and the jar below the bleed port, there is no need to close the bleed port every time that you pump the brake. It will not suck in any air, and will pump out more fluid than it sucks back. Just be sure to keep the end of the hose in the old fluid at all times.

Continue pumping the brakes until clean clear fluid comes out, and then some more to be sure. You will have to keep adding new fluid to the reservoir to keep it full and prevent pumping air into the system. Be sure all the old fluid is out.

Don't worry about wasting the fluid by pumping new fluid through the line after it is mostly clean. You will have way more than enough fluid from even the smallest size container of brake fluid. Unless you have another vehicle that needs new fluid that day, then the left over fluid is trash. You should not save it as it will be no good after it sits and absorbs moisture.

On the last pump of the brakes, hold it, and tighten the bleed port before you release it so that no old fluid is sucked back into the line. Your brake system should now be clean, and free of air with no additional bleeding required. Just top off the reservoir to the full mark, close it up , and go for a nice ride.
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