Is there a difference in brake fluid?

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Whoever has the fluid with the highest boiling point if you're tracking it. Beyond that it makes no difference - you'll be swapping it out solely because of moisture contamination, and no DOT3 or DOT4 fluid will perform much differently.

Valvoline makes a decent, cheap DOT3/4 fluid I believe.
 
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ATE, Castrol LMA, I even remember Valvoline making a synpower brake fluid if you can find those.

Brake fluids you see at the store are all the same. They just got to meet the DOT 3/4/5/5.1 wet/dry boiling requirements and that's it.
 
I read somewhere that a ford brakefluid was the best by a very large margin i am unsure of the specifics but have it wrote down somewhere.The best non syn fluid
 
Just don't mix them as far as dot3 and dot4 or even worse dot5. If you use your car for every day driving any dot 3 will work just fine, just have the fluid tested yearly and flushed if needed.
 
OK, I have never done any work on brakes or brake fluid before - I have to ask :

Can I just use a siphon to pump the brake fluid out of the reservoir and replace it? I bought the Valvoline DOT 3/DOT 4 today.

I really don't want to bleed the brakes. Is this a plausible way to replace brake fluid? Go easy on me, I'm new to this.
 
Carquest has Pentosin DOT4LV which is said to help ABS systems work better. LV stands for low viscosity.

There are other Low Viscosity fluids out there, but Pentosin is the one I find most easily.
 
you would have to bleed it to remove it all i would gravity bleed it.Break all the bleeders loose and let them flow slow, just fill with the new fluid let it get low again and your good to go.If they are the cars in your profile the bleeders should break fairly easy.You may want to spray with PB blaster or whatever and sit overnight but you are in SD and they should brek loose easy.
 
Originally Posted By: jsnyder49090
I read somewhere that a ford brakefluid was the best by a very large margin i am unsure of the specifics but have it wrote down somewhere.The best non syn fluid


Considering all brake fluids are synthetic whatever you're talking about doesn't exist.
 
Originally Posted By: zerosoma
OK, I have never done any work on brakes or brake fluid before - I have to ask :

Can I just use a siphon to pump the brake fluid out of the reservoir and replace it? I bought the Valvoline DOT 3/DOT 4 today.

I really don't want to bleed the brakes. Is this a plausible way to replace brake fluid? Go easy on me, I'm new to this.


Unfortunately to go easy on you; to fully replace the fluid you'll have to bleed the brakes. The brake line fluid doesn't see a lot of real flow in and out of the system so if you exchange the reservoir, the fluid in the lines will never be swapped out.
 
There are a ton of super high boiling point fluids, too many to list. One of the best is ate super blue.

Brake fluid is hygroscopic, which means it will absorb water just from being in contact with air. Ate understands this and sells their fluid in metal contaners.
 
Originally Posted By: jsnyder49090
I read somewhere that a ford brakefluid was the best by a very large margin i am unsure of the specifics but have it wrote down somewhere.The best non syn fluid


I don't believe it- esp by a 'very large margin'.
I have no idea what you have written down, but disregard it.
And all brake fluid is synthetic -what 'non synthetic ' fluid are you talking about?
 
Originally Posted By: Spinall4
There are a ton of super high boiling point fluids, too many to list. One of the best is ate super blue.

Brake fluid is hygroscopic, which means it will absorb water just from being in contact with air. Ate understands this and sells their fluid in metal contaners.


All brake fluid comes in sealed containers. Being metal does not matter. And what coating is on the metal can innards, anyways?
 
Originally Posted By: mechtech2
Originally Posted By: Spinall4
There are a ton of super high boiling point fluids, too many to list. One of the best is ate super blue.

Brake fluid is hygroscopic, which means it will absorb water just from being in contact with air. Ate understands this and sells their fluid in metal contaners.


All brake fluid comes in sealed containers. Being metal does not matter. And what coating is on the metal can innards, anyways?


Stop tech also puts their fluid in metal containers.

Fluid
 
Originally Posted By: crazy8
Just don't mix them as far as dot3 and dot4 or even worse dot5.


I want to change the brake fluid in a car of which I don't know the maintenance history. I have no idea if the current brake fluid is DOT 3, 4, 5 or other. What fluid should I purchase to use when I bleed my brakes?
 
Originally Posted By: Pajamarama
Originally Posted By: crazy8
Just don't mix them as far as dot3 and dot4 or even worse dot5.


I want to change the brake fluid in a car of which I don't know the maintenance history. I have no idea if the current brake fluid is DOT 3, 4, 5 or other. What fluid should I purchase to use when I bleed my brakes?



I doubt anyone put the silicone DOT 5 in there. Strongly doubt it.
Use DOT 3-4.
 
There is the most recent Dot 4.1 from Wagner I think. I think just the boiling point may be a tad higher than Dot 3 and 4 but not Dot 5. Google it and find more info. if you are interested.
 
Originally Posted By: Donald
The best brake fluid is an unopened container!


Ain't that the truth!!
cool.gif
 
Any 3 or 4 will do. No typical passenger vehicle calls for 5. It has different properties than 3 or 4, and should only be used when specifically required.
 
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