DOT 5.1

[lazyitus]

Anybody here use this instead of DOT 4.0?

I believe you can mix the two.

Is 5.1 noticably different on road and track?

[shpub]

Yes. and yes it is better. More details including boiling points in the bible.

[K4TRV]

Just do NOT get it confused with Dot 5, which is silicon and must not be mixed with any other braking fluids (other than itself !!). Used for Classic cars etc, it is non-hygroscopic (thank's to The Dodger) (doesn't absorb water).

Trev McM

>> Edited by K4TRV on Wednesday 7th April 13:41

>> Edited by K4TRV on Wednesday 7th April 13:43

[the dodger]

Trev, I think you mean dot 5 (synthetic) is non-hygroscopic (doesn't absorb moisture). Thixotropic means it's a gel which gets runny when stirred - like 'Thixo-Fix' adhesive for Formica which you apply with a spreader.

[K4TRV]

the dodger said:

Trev, I think you mean dot 5 (synthetic) is non-hygroscopic (doesn't absorb moisture). Thixotropic means it's a gel which gets runny when stirred - like 'Thixo-Fix' adhesive for Formica which you apply with a spreader.

abso*bloomin*lootly, I'll now amend, apologies. My brain cell, the one I had a couple of hours ago, was thixotropic ;-))

[johno]

K4TRV said:

Just do NOT get it confused with Dot 5, which is silicon and must not be mixed with any other braking fluids (other than itself !!). Used for Classic cars etc, it is non-hygroscopic (thank's to The Dodger) (doesn't absorb water). Trev McM >> Edited by K4TRV on Wednesday 7th April 13:41 >> Edited by K4TRV on Wednesday 7th April 13:43

Have used it in the Griffith for 12 months+. Getter better performance that DOT4 and do not have to change every 6 months like I did with DOT5.1.

Use it in the clutch system as well.

You do not to make sure you flush the system thoroughly though...

[lazyitus]

johno said:

You do not to make sure you flush the system thoroughly though...

I think I understand!

[johno]

lazyitus said:

johno said: You do NEED to make sure you flush the system thoroughly though... I think I understand!

Tw@t ! (me, not you)

My typing is getting worse and worse on PH these days ...

I was looking at few posts from the last 2 weeks and couldn't find one that didn't have typo in it !!

[ByronTVR]

I've also seen *stock* brake hoses to leak-break after a while, when using DOT 5.1 Silicon based fluids, so be carefull with them
Would be a good chance to upgrade and the brake hoses to braided ones as well as they can cope up with thick brake fluids.

Byron

[the dodger]

I'm having braided hoses fitted and changing to dot 5.1 this week (I hope!). Braided hoses from Peninsula (about £50 set), fluid from Halfwits at £9/litre.

[johno]

ByronTVR said:

I've also seen *stock* brake hoses to leak-break after a while, when using DOT 5.1 Silicon based fluids, so be carefull with them Would be a good chance to upgrade and the brake hoses to braided ones as well as they can cope up with thick brake fluids. Byron

I have full braided hoses all round inclusing the clutch ..