Best brake fluid for std Elise S2

[MadProf]

Just about to stick new discs,pads and Goodridge brake lines on my S2 Type 25,what's the best brake fluid I can buy for my money,any thoughts?Was thinking of using Castrol SRF.

[Sam_68]

Castrol SRF will do just fine - it's an excellent quality fluid, but to be honest you'll pay a lot more for it and you won't notice any difference whatsoever for road or track day use... to be honest, the frequency it is changed is far more important than the manufacturer.

Brake fluid isn't particularly complicated stuff to manufacture, chemically, so just use whatever DOT5 (NOT DOT 5.1, which is silicone based and not suitable for the Elise) fluid you can readily obtain at your local motor factors and change it regularly.

[Birdthom]

Er, I could be wrong but I thought DoT 5 was silicone and must not be mixed but DoT 5.1 was OK to mix with standard fluids? I hope so, because I've been using DoT 5.1 in my car for a while now!

[Sam_68]

Yes, Sorry!

You're quite correct - DOT 5.1 is safe, DOT 5 is silicone!

[Birdthom]

phew...

[Gooby]

http://www.demon-tweeks.co.uk/products/ProductDeta...

This is the stuff you want. It has awesome properties and doesnt absorb water.

FLIPPIN expensive

[MadProf]

Flippin is expensive!!have seen it on Ebay at £36.

[Beachbum]

Gooby said:

http://www.demon-tweeks.co.uk/products/ProductDeta...

This is the stuff you want. It has awesome properties and doesnt absorb water.

FLIPPIN expensive

Can you use Dot 4 in the Elise ?

[Gooby]

Beachbum said:

Gooby said:

http://www.demon-tweeks.co.uk/products/ProductDeta...

This is the stuff you want. It has awesome properties and doesnt absorb water.

FLIPPIN expensive

Can you use Dot 4 in the Elise ?

Used in 240RS to great effect

[Birdthom]

I bet - at that price it should make the car go twice as fast.

[Cuzza]

Bog std DOT4 will be fine, something like Castrol Response is perfect or even the Halfords stuff, the secret is to bleed it properly. If you want to go a bit better, I use AP600 which Demon Tweeks also sell and it's about £15 a botle plus theft.

SRF is overkill (and overpriced) for your application.

[Sam_68]

Cuzza said:

...the secret is to bleed it properly.

well-bled brakes with fresh fluid is worth any amount of fancy fluid specification. The best brake fluid in the world isn't worth a damn if there are air bubbles or absorbed moisture between the pedal and the pistons.

[Gooby]

Cuzza said:

SRF is overkill (and overpriced) for your application.

Ah but the OP asked for the best. Didnt state application.

spent the last 2 days writing project definitions - sorry

[Cuzza]

Sam_68 said:

Cuzza said:

...the secret is to bleed it properly.

well-bled brakes with fresh fluid is worth any amount of fancy fluid specification. The best brake fluid in the world isn't worth a damn if there are air bubbles or absorbed moisture between the pedal and the pistons.

I reckon the "improved feel" people credit to braided hoses is 90% caused by the new fluid and a decent bleed of the system.

Gooby