focus 4x4

Whats the best stuff to use in my cosworth for enthusiastic road use?

gus

iTrader: (1)

5.1 in mine millers i think it was

focus 4x4

Thats the other thing ive noticed , whats the dot 4 and dot 5 business all about?

gus

iTrader: (1)

boiling points i think (fade)

focus 4x4

Cheers Gus , Dot 5 being the better one i take it?

gus

iTrader: (1)

think the dot 4 is fine for fast road

dot 5 is more fast road / track i think

Rcjm88

I've heard good things about this:

http://www.camskill.co.uk/products.p...1b0s4403p57244

A few people have recommended it

ECOS95

Castrol SRF for me.

whizzisat114

iTrader: (2)

Dot 5 is better but needs changing more often

biscuittin

i use ate racing blue dot 4 in my evo 8 on the track , i've had no problems i just change it once a year
and its A BLUE colour

tabetha

Depends on individual brands, most dot 5 have a LOWER boiling point than dot 4(not all though) with around 270C being typical for dot 5 and 300C typical for dot 4.
DOT5 was NEVER intended for racing, it was actually needed for COLD climates where it has better low temp viscosity needed for cars with esp in cold climes in particular.
Much better off to use a fast road fluid such as tarox road race for example.
tabetha

Drunken Master

What he said!

furqall

is silicon brake fuild any good???

GaryEvo

rbf660 motul fluid fixes any issue we have had

ECOS95

SRF is, it doesn't absorb water like normal brake fluid. The more water in the fluid the lower the boiling point.

Retro Al

iTrader: (1)

SRF IMO is the best

RONNIE AMIS

iTrader: (17)

i use ATE super blue racing in mine, used to use srf.

never had any problems with both, but the ATE is a lot cheaper

Ginge !

behave with that stupid comment

Ginge !

i also use ate blue

focus 4x4

Dot 4 it is then! LOL

cabrio zo

Motul RBF http://www.motul-oil.co.uk/products-brake-fluid.php

Ridgey

iTrader: (5)

ATE Blue or Gold are good.
Most Race fuilds seem to be labeled as Dot4

fraser9764

iTrader: (3)

didnt think you could mix certain types due to different seals?
think we run 5.1 in the 205. i think it was better than dot4 but not as good as dot5, but you couldnt mix dot 5 with 4
might be wrong though.

BRAMMER

iTrader: (23)

Dragging up an old thread but i'm just about to buy some fluid and stumbled across this thread i really just need something to work at fast road level in AP's

The fluid i was about to buy is this AP 5.1 stuff

http://www.ebay.co.uk/itm/2807165428...84.m1423.l2649

Is this the stuff mentioned above?

http://www.ebay.co.uk/itm/ATE-Super-...item3f0ec83d69

Heitmann

iTrader: (1)

Thats the one - also available as ATE 200, sames spec as the super blue, but orange in color for easy change

Brendan

iTrader: (1)

ok the DOT spesification is to do with NOT absorbing water, which boils under breaking as things get hot ... the steam in the system causes spongy / no breaking.
Breaking is converting kinetic energy into heat energy! so stopping a tonne plus of car from 150mph = lots of heat. castrol make somthing called SRF and it is supposed to be in a class of its own.

BRAMMER

iTrader: (23)

At £43 per Litre you'd want it to be

So when putting new fluid in does it matter if it mixes with old fluid in the lines or do you have completely drain it? and (how????)

Ridgey

iTrader: (5)

If you get the Blue stuff which is very good, just bleed all 4 corners until it's blue coming out. 1 litre is enough.
Don't think it matters that if they are 4 or 5 dot. Not ment to mix normal fluid with silicone (uncommon i think) based ones though.