Top Trumps - Brake Fluid

[Dean Roberts]

Another poser for the kids to discuss.

 

 

Fluid Dry ERBP (°F) Wet ERBP (°F) Viscosity Limit Chemical Fluid Dry ERBP (°F) Wet ERBP (°F) Viscosity Limit Chemical Grade @ 0.0% H2O @ 3.7% H2O (Cp @-40°F) Composition DOT 3 401 284 1500 mm2/s Glycol Ether Based DOT 4 446 311 1800 mm2/s Glycol Ether / Borate Ester DOT 5 (SSBF) 500 356 900 mm2/s Silicone Based DOT 5.1 500 356 900 mm2/s Borate Ester/ Glycol Ether

 

Which one is your favourite or recommendation?

• DOT 3
• DOT 4
• DOT 5

Let battle commence!

 

 

 

 

 

....Top Trumps could be good as a separate section with voting cards to find the winners....

 

 

[brumster]

Oh lord. You're just goading people now

 

For the road? DOT 5, the cheapest stuff on the shelf unless for any reason your brake manufacturer advises against it (seals/etc)

Edited June 17, 2016 by brumster

[Guest Ian & Carole]

Thought I would get in early this time.

 

 

 

 

Right I'm ready , lets go.

[speedtripledan]

Only ever used dot4

[Guest Gargoil]

Another poser for the kids to discuss.

You know, none of the first bit of the post makes no sense to most of us, Dino?

Could a saved yourself a lot of spell checking.

Besides, is Dot 4 from the shelves of Morrisons any worse than the liquid gold sold at Halford?

 

 

 

Fluid

 

Dry ERBP (°F)

 

Wet ERBP (°F)

 

Viscosity Limit

 

Chemical

 

Fluid

 

Dry ERBP (°F)

 

Wet ERBP (°F)

 

Viscosity Limit

 

Chemical

 

Grade

 

@ 0.0% H2O

 

@ 3.7% H2O

 

(Cp @-40°F)

 

Composition

 

DOT 3

 

401

 

284

 

1500 mm2/s

 

Glycol Ether Based

 

DOT 4

 

446

 

311

 

1800 mm2/s

 

Glycol Ether / Borate Ester

 

DOT 5 (SSBF)

 

500

 

356

 

900 mm2/s

 

Silicone Based

 

DOT 5.1

 

500

 

356

 

900 mm2/s

 

Borate Ester/ Glycol Ether

 

Which one is your favourite or recommendation?

 

• DOT 3
• DOT 4
• DOT 5

Let battle commence!

 

 

 

 

 

....Top Trumps could be good as a separate section with voting cards to find the winners....

Edited June 17, 2016 by Gargoil

[Guest Gargoil]

Do like Top Trumps though.

 

[Guest lotusPaul]

Just pure evil..devils advocate being played now..

[ivorbigun]

Dot 5 boils at too low a temp for hard / racing use I am told?

Edited June 17, 2016 by ivorbigun

[Dean Roberts]

I've always been using dot3 in the past. But things have evolved and recommendations are to use dot5.

 

Whereas the sales suggest dot4 is the favourite.

 

It would be interesting to find out what everybody else is using and is it being used for general driving or racing.

 

Or do some people change it between track days and road days (as per tyres).

 

..... Hey at least I woke you all up and got the forum lively again

 

Ian, have you got sweet or salted?

[MarkBzero]

Castrol react srf racing dot4 is my preferred choice, never let down on track or road.

[Guest lotusPaul]

In last few years I've mostly used Halfords own brand DoT 4. I've just looked on site but mines not there. They do have Comma @ £20 for 5 ltrs tho. About same price,hence why I drive to curcuit,bleed brakes before and after. At that price its worth it.

[Guest 2b cruising]

As CMA suggests. DOT 5.1

Good for track and road.Will mix with other mineral make ups.

DOT 5 I would not use unless manufacturer states, or system dried out and then thoroughly bled through.

You would then more or less condemned to using nothing but this stuff and make sure any repairers are aware of what you have in.

 

Little bloody nuisance buggers. Top trumps.

[Guest Tim Norman]

I have used silicone non hydroscopic for years.

[ivorbigun]

Dot 5 boils at too low a temp for hard / racing use I am told?

and the bubbles that form don't dissipate back into the fluid so if you over heat it you have to change it on the plus side it doesn't soak up water, used by a lot of classic car owners to prevent seized callipers/wheel cylinders etc.

[maccavvy]

kit car gets standard dot 4 but I don't go on track

 

monaro had ate super blue in when I bought it and continue to use. never had issues.