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DOT4+ Brake Fluid

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Old Jul 22, 2013 | 08:09 AM
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autumnmass's Avatar
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Default DOT4+ Brake Fluid

I been trying to find DOT4+ brake fluid in my local auto stores however they don't carry it. Could someone let me know where they purchase the DOT4+ brake fluid from. I have a 2004 crossfire coupe. Thank you.
 
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Old Jul 22, 2013 | 08:44 AM
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Bigkid's Avatar
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Default Re: DOT4+ Brake Fluid

Rob at Needswings carries the Stop-Tech brand and may be able to order other brands as well. Check with local speed shops as they probably could order for you too, but through them they may have a minimum order that is twice the quantity you need. ( the voice of experience)
 
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Old Jul 22, 2013 | 09:21 AM
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Default Re: DOT4+ Brake Fluid

http://www.autozone.com/autozone/acc...er=433371_0_0_

Just down the street?
 
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Old Jul 22, 2013 | 10:23 AM
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autumnmass's Avatar
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Default Re: DOT4+ Brake Fluid

Originally Posted by Mrmiata
Confused, is DOT 4 the same as DOT 4+?
 
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Old Jul 22, 2013 | 10:48 AM
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Mrmiata's Avatar
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Default Re: DOT4+ Brake Fluid

Originally Posted by autumnmass
Confused, is DOT 4 the same as DOT 4+?

Originally Posted by ;
supposedly the only difference is the heat tolerance..ive got 13'' rotors and 6-pot calipers on all 4's and use DOT4...works fine considering i am not halting from 150 mph to 0 daily..

Below is a side by side of the two compaired.


(% of moisture/boiling point)

DOT 4 DOT 4+
1% 446F 1% 527F
2% 383F 2% 428F
3% 347F 3% 383F
4% 320F 4% 365F
Found this on another site... and a few more tidbits..

In so many words, DOT 5.1 fluids are simply DOT 4-type fluids which meet DOT 5 performance requirements. Because of this, they typically can be mixed with DOT 3 or DOT 4 fluids without concern. In some circles, they are even referred to as ‘DOT 4 Plus’ or ‘Super DOT 4’ fluids because they are more similar to a conventional DOT 4 fluid by chemistry than they are to a conventional DOT 5 fluid.

While it may not be obvious, the big advantage of the DOT 5.1 fluids is that they contain all of the nifty water-absorbing characteristics of the DOT 3 and DOT 4 fluids while simultaneously providing for very high boiling points and relatively stable viscosity over a wide range of temperatures.
 

Last edited by Mrmiata; Jul 22, 2013 at 10:59 AM.
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Old Jul 22, 2013 | 12:15 PM
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Default Re: DOT4+ Brake Fluid

I have seen DOT 5, but was unsure if we could use it. You folks are using it now without any problems???
 
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Old Jul 22, 2013 | 12:18 PM
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Mrmiata's Avatar
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Default Re: DOT4+ Brake Fluid

FORGETT Dot5 .... Dot5.1 is compatible.. NOT Dot5
 
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Old Jul 22, 2013 | 12:23 PM
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Default Re: DOT4+ Brake Fluid

Roger that... I'll look !
 
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Old Jul 22, 2013 | 01:39 PM
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Default Re: DOT4+ Brake Fluid

Dot 4+ is available at most European new car dealers.....Mercedes, Volvo, BMW, etc.
 
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Old Jul 22, 2013 | 04:14 PM
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Default Re: DOT4+ Brake Fluid

I use dot 5 exclusively, as does the US military and post office. You must remove all dot3/4 when changing over to dot 5.
 
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Old Jul 22, 2013 | 04:56 PM
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Mrmiata's Avatar
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Default Re: DOT4+ Brake Fluid

Originally Posted by arado
I use dot 5 exclusively, as does the US military and post office. You must remove all dot3/4 when changing over to dot 5.
Here's a "been there done that" thread for you.. DOT5.. no thanks.

Switching from DOT 3 to DOT 5 Brake Fluid - Corvette Forum
 
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