Brake Fluid

[IceDouTGaLanT]

Doing my disk swap this weekend, what type of brake fluid should i use dot 4 or dot 5? Im using v6 SS lines, pads, and dual piston caliper up front if that makes a difference

[kolio]

i use dot 4, i think the only diffrence is boiling point

[IceDouTGaLanT]

any certain brand i should go with or not use?

[kolio]

i use synthetic prestone high temp dot 4. i use this for my clutch too.

[RedGalant2k1]

Doing my disk swap this weekend, what type of brake fluid should i use dot 4 or dot 5? Im using v6 SS lines, pads, and dual piston caliper up front if that makes a difference

Dot 4 only. Dot 5 is quite different and is NEVER to be mixed with dot 3 or dot 4 at any time, ever.

http://en.wikipedia.org/wiki/DOT_5

So in other words, Dot 4 only.

[greddy]

Motul fluid!

[qnz]

well if youre going to be bleeding the entire system, then you could use dot 5 as long as you got the old stuff out. get some speed bleeders and it will go even faster.

[DOHCstunr]

dot 5 is silicone.
you can't use it period. when it contacts regular brake fluid. it turns to gel.
Which means if you run it in your car.... you will wreck.

you'd literally have to have NO ABS, and...
completely dry new never used: calipers, flex lines, hard lines, proportioning valve, and master cylinder.

you can however use DOT 5.1
which is fully compadable with DOT3 and 4

The highest off the shelf loiing point i've found is valvoline synthetic DOT5.1

If you have time to wait for it to come in the mail, or you have a tuner shop around that stocks it, I use Motul RBF600
Its pretty badass, and inspite of all my driving and track days, I only need to flush it once a season.
can't really say that for anything else.

If you do decide to go with the expensive Motul... I recommend completely flushing your lines with a couplle quarts of valvoline DOT5.1 synthetic first, to get all the old fluid, and contaminants out of yoru lines and system.

[Ruslik]

use dot 4
and in my brake fluid reservoir were some particles so just clean it out if urs is dirty

[IceDouTGaLanT]

okay ill just buy Dot 4/speed bleeders Thank you guys for your quick response.

[qnz]

my bad. yea, i was thinking DOT 5.1 which is what I use. DOHC is right

[Stewi]

if you want to buy Motul fluid, you can get it at any import motorcycle shop/dealer