Brake fluid...talk to me

[Martin.]

Right, I originally had in my mind that I would be ordering this:

http://www.opieoils.co.uk/p-893-motul-dot-51-brake-fluid-long-life-100-synthetic.aspx

But after more looking around, I get the impression that for a 1*2, DOT4 fluid is recommended.

Is this correct? Or will anything do? Car will mainly be used on track. Got everything else pretty much sorted out apart from this.

Thanks

 

[KevF182]

Right, I originally had in my mind that I would be ordering this:

http://www.opieoils.co.uk/p-893-motul-dot-51-brake-fluid-long-life-100-synthetic.aspx

But after more looking around, I get the impression that for a 1*2, DOT4 fluid is recommended.

Is this correct? Or will anything do? Car will mainly be used on track. Got everything else pretty much sorted out apart from this.

Thanks

DOT4 and DOT5.1 spec fluids are interchangeable so either will be ok to use. Dot 5.1 is a higher specification regarding dry and wet (containing 3.7% water) boiling points.

In theory, a DOT5.1 will be better. But bear in mind that, as with any standardised specifications, manufacturers can make a product that does the numbers and still make a poorer overall product. A quality racing DOT4 may not be rated to the top dry boiling point but more stable under repeated heating/cooling cycles in use.

... I'm not going to suggest a product as there are more experienced / racers on here who will do that with more knowledge

 

[Steve]

ATE Superblue £12 what more could you need?

 

[Cup_Phil]

ATE Superblue £12 what more could you need?

Exactly this - same as the WRC teams use, higher boiling point than 5.1

 

[Martin.]

Cheers. Is this the stuff to use then..

I will get some of this instead!!

 

[Keith185]

Castrol dot 4 stuff I've used last 5 years in mine. Never had any problems and car is used regularly on track. ATE super blue comes highly rated aswel.

http://www.opieoils.co.uk/p-742-castrol-react-performance-dot-4-formerly-response-super-dot-4-synthetic-brake-fluid.aspx

http://www.eurocarparts.com/ecp/p/c...liary-fluids/brake-fluid/?130339010&0&cc5_179

Remember that dot 5.1 will need to be changed once a year atleast due to water absorbsion. Personally wouldnt bother with dot5.1 stuff unless you use your car for motorsport.

 

[George@RTR_Parts]

ATE Superblue £12 what more could you need?

Gets my vote aswel, also easy to see when bleeding through

 

[Martin.]

Wicked thanks, how much is needed again. 1L more than enough? Or shall I just get two. Assuming it can be stored and wont degrade.

 

[Jeffie]

I see this recommendation a lot in Europe and the US. What is the main appeal, price to performance? It is relatively expensive here in Aust, and lower spec than RBF600.

 

[mantis946]

I got 1L when I did mine and had some left over (Full bleed on all the lines)

And I think it's "bad practice" to store an opened can of brake fluid, moisture contamination and all.

Oh and another +1 for ATE Superblue

 

[Martin.]

Thanks lads. Ordering some now!

Cheers

 

[Steve]

Gets my vote aswel, also easy to see when bleeding through

Any update on the discs?

Thanks lads. Ordering some now!

Cheers

Good choice

I got 1 L did brake system & clutch, still got plenty left.

 

[c__w]

Remember that dot 5.1 will need to be changed once a year atleast due to water absorbsion. Personally wouldnt bother with dot5.1 stuff unless you use your car for motorsport.

Same as all brake fluids! Unless you're thinking of silicone-based DOT 5? Dot 5.1 was developed over DOT4 for modern ABS brakes (althoug DOT 4 works with abs braked cars also) it just has a slightly lower viscosity and has higher basic spec temp ratings.


I got DOT 5.1 at around £2.50/500ml from EuroCarparts recently.

 

[George@RTR_Parts]

Thanks lads. Ordering some now!

Cheers

Goodstuff mate, they also do a super gold- same spec just amber coloured so can alternate between them for easy changes.

Any update on the discs?

Alright Steve, sorry I thought i had text you ages ago mate! :banghead:

I found out next day for you, PM coming your way.

 

[Steve]

Any update on the discs?

Alright Steve, sorry I thought i had text you ages ago mate! :banghead:

I found out next day for you, PM coming your way.

Cheers

 

[PNichols]

Just put millers mororsport in mine, let you know how it performs after Monday's trackday

 

[kris-182]

Is ATE Superblue ok for non track use. Just general driving???

 

[LIL B]

Of course it is, its a standard brake fluid.