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Old 09-12-2006, 12:07 AM   #1
eekadog
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Default Re: Brake Fluid Does Matter

i have to take my harley to get the recall brake service performed.
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Old 09-12-2006, 12:15 AM   #2
riyadhblues
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Default Re: Brake Fluid Does Matter

That reminds me, I just got a better rate at geeko
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Old 09-12-2006, 01:31 AM   #3
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Default Re: Brake Fluid Does Matter

Dot 3 (and Dot 4, for that matter) are hygroscopic, i.e. they absorb moisture over time. Dot 5, being silicone-based, doesn't. The reason you shouldn't mix them is that they have different boiling points, and as anyone with experience of metals knows, sometimes when you mix two things with different boiling/melting points, sometimes you get a mix which has a boiling/melting point lower than either of its original constituents.
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Old 09-12-2006, 01:36 AM   #4
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Default Re: Brake Fluid Does Matter

Mixing the brake fluid is like mixing oil. Won't stop it from working but the two shouldn't be forced together because the blends ARE different. I suggest mail order if you can't find it. Anyway, all modern bikes have been carrying Dot 5 fluid since 1987. My K100RS uses it as required by all Euro bikes as of 1995. You can also try braided lines to firm up the brakes. Either way you will improve braking- slightly.
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Old 09-12-2006, 04:12 AM   #5
Dscottpete
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Default Re: Brake Fluid Does Matter

My 2000 SV650 uses DOT4, perhaps Suzuki is behind the times?
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Old 09-12-2006, 04:17 AM   #6
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Default Re: Brake Fluid Does Matter

"Also, when regulating the DOT 5 the officials knew perfectly well that it is just a matter of time before somebody in Boise, Idaho, will mess things up. Probably somebody named Wayne."



Well, I guess we probably have our share of uninformed people here in southern Idaho, but not so many that Boise should be held up as an icon of ignorance. My perception is that most of those ignoramuses have showed up here lately, and possibly many of them from wherever cruiz-euro hails from.
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Old 09-12-2006, 04:50 AM   #7
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Default Re: Brake Fluid Does Matter

It's that Gen X thing. You're just caught in a state of flux.
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Old 09-12-2006, 05:22 AM   #8
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Default Re: Brake Fluid Does Matter

Nah, the ex-wife moved there and probably dumbed things down quite a bit.
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Old 09-12-2006, 07:51 AM   #9
03zx12r
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Default Re: Brake Fluid Does Matter

I think the author of the above did not fully research the facts about the fluid. Point in question - quoted as follows



Basically it boils down to two simple scientific facts:



1) Anyone who says you can´t mix DOT 3 and DOT 5 is a complete freeking idiot.

2) Anyone who does not immediately change the brake fluid of all his keeper bikes to DOT 5 is a complete freeking idiot.



The above is Not a Scientific Fact. Not surprising coming from a Harley guy...
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Old 09-13-2006, 04:47 AM   #10
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Default Re: Brake Fluid Does Matter

You obviously did not read the article and thus are spreading the misinformation yourself.



Firstly, you can mix DOT 4 and DOT 5. It was tested with fifty vehicles. Anybody who changes the fluid type does that mixing also, because 10 - 30% of the old type remains in the system. But as stated in the article, no problem.



Secondly, glycol based DOT 4 collects moisture, which causes corrosion in the long run. DOT 5 does not and prevents all corrosion. This is the reason for DOT 5.



- cruiz-euro

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