Brake fluid type?

[Ian_csl]

Hi Guys,

I am going down the BBK route at the moment and am interested to know what type of brake fluid people are using for road use and a few track days.

I know it may seem a silly question, but there seems to be many types of "racing" fluid available.

[funtime]

Castrol SRF is the best fluid in many peoples opinions. Just one tip, don't get too hung up on dot numbers - Castrol SRF is Dot 4 but has the highest boiling point out of all the fluids, which is essentially all that matters.

There are loads of comparison tables on the net, don't just take my word for it, SRF comes top of most!

James

[The Gorilla]

Hi,

Ian- Do a Search and you may save
yourself some money.

Regards,

The Gorilla.

[mattCSLnut]

ATE Racing Blue works well for me :thumbs: as James said the higher the boiling point the better,with "the higher the better" DOT number being less important :thumbs:

[s.mac]

yep ATE blue for me

[northernjim]

Castrol SRF is the best fluid in many peoples opinions. Just one tip, don't get too hung up on dot numbers - Castrol SRF is Dot 4 but has the highest boiling point out of all the fluids, which is essentially all that matters.

There are loads of comparison tables on the net, don't just take my word for it, SRF comes top of most!

James

It also needs changing the most often too, aswell as being by far the most expensive.....

wet boiling point is actually a very important factor too

[s.mac]

mines due for changing in a couple of weeks, how much do you need ?
Ive taken 2 before and the dealer was OK, the next time I got the call they needed another bottle ....

do ATE do another colour so I can tell its been all flushed out ?
sorry about going off topic :whistle:

[Pip1968]

What about the AP fluid that comes with the BBK kit? More expensive lower/higher quality???? I could do with changing mine although the brakes are still great and as sharp as.

Pip

[shane@mbtech]

Motul rbf 600 gets my vote

Although we use a 5.1 cheap as chips fluid in our kids e30 325. Never skipped a beat and it stands on its nose all day long.
Mind you, it has standard discs, standard shit calipers and carbotech XP8's pads and braided hoses, it has been faultless on the brakes- just goes to show that the low weight plays a huge huge part.

[shane@mbtech]

mines due for changing in a couple of weeks, how much do you need ?
Ive taken 2 before and the dealer was OK, the next time I got the call they needed another bottle ....

do ATE do another colour so I can tell its been all flushed out ?
sorry about going off topic :whistle:

Ill sort it when you pop up my end Steve.

[northernjim]

Ill sort it when you pop up my end Steve.

:bigcry: I know he's a little chap but.......

[shane@mbtech]

:bigcry: I know he's a little chap but.......

:hahaha::clown:

[Ian_csl]

Thanks for the info guys.

I will have a look into ATE and motul.

I take it these will be ok if normal fluid has been used previously ie it will mix safely with any residue in the system?

[shane@mbtech]

Thanks for the info guys.

I will have a look into ATE and motul.

I take it these will be ok if normal fluid has been used previously ie it will mix safely with any residue in the system?

Whn you change brand/type you need to make sure all the old stuff is out first
When bleeding brakes we empty the reservoir completely first to minimise the amount of old fluid to then get out.

[northernjim]

motul rbf 660 is the latest top of the line motul stuff:beer:


You flush the system thru with new fluid, starting from the back calipers to the front... you can see the difference in colour between old and new....:thumbs: