DominicA

RB5 MY99, DOT 5.1??

Dyney

Yes,

ChrisB

Silkolene Pro Race 2000 DOT 4 in mine now. With braided hoses, pedal feel is much better - doesn't feel so soggy.

Dyney

Are you guys saying Prorace is better than std or DOT5.1 stuff????

I'm using AP DOT 5.1 and have to say its soooo much better than std but then I did fit braded hoses at the same time

Scoty

Can you mix the brake fluid that comes standard with dot 5.1 .i.e my fluid needs topped up and I've got a bottle of 5.1 that I could use?

Scoty

T-uk

will pro race not need changed more frequently though?

Danny Fisher

Fairy

Dyney

Scoty,
You should not mix brake fluids

Danny,
Liquid

NBW

Seem to remember reading that Pro-Race was good for 2 years in the UK.

Give Scoobysport or TSL a call, they recommend and sell this stuff and can recommend.

Excellent with braided hoses as others have said.

Cheers
Tim

mutant_matt

Anyone know where you can get AP 5.1 fluid? (other than Scoobymania 'cos they're not answering their phone right now.....)

Matt

DaveW

Tried Silkolene but running AP600 at the moment. Do need to bleed your brakes more often though.

DaveW

Geoff Drucquer

I'm using Automec Silicone Brake fluid DOT 5 rated (from Demon Tweeks). Silicone fluid is meant to last longer as it does not absorb water, also it won't rot your paintwork if you spill it. Has been good so far - fitted 4 months ago.

Rob Powell

I was recommended ATE Racing Blue fluid in my AP 6 pot kit, seems to be ok, no soggy pedal effect. Dunno price cos it was chucked in with the kit........very nice of 'em

Hoppy

Done a bit of research.

The DOT number refers to the rate at which the fluid absorbs water. The higher the better for long service life. It is not a heat rating. Racing fluids are usually DOT 3 and have superior properties, but must be changed frequently.

Dave, your AP600 fluid is only recommended for carbon/carbon braking systems as in F1, because of its very high temperature capabilities. And they change it after every session. Not recommended for road use. Must NOT be mixed with any other fluid. And it also eats magnesium creating gasses.

Silicone brake fluid is also not recommended. Its only virtue is that it doesn't absorb water. It was apparently invented by the American military so that vehicles kept in long-term storage could be ready for immediate action.

The stuff that AP Racing supply with their official kits is AP Lockheed Ultra 5.1. Check their website (apracing.com) for details of distributors.

Pete Croney made an interesting post on here a few weeks ago, saying that he'd tested a few different fluids and found noticeable differences in their compressibility (ie good pedal feel). The best fluids were the AP Ultra as above, a Silkoline fluid (can't remember details, but Scoobysport sell it) and I think one other fluid I've forgotten.

Pete, care to re-post your test findings and maybe comment on the above? Thanks.

Cheers,

Richard.

Hoppy

Pete Croney - are you around? Wisdom wanted above

Richard

Hoppy

ttt

Pete, you lurkin'?

Andy W

I have to agree with Chris I have PRORACE and brained lines the difference is very noticeable.

Andrew

Dominic You have mail.



[Edited by Andy W - 3/5/2002 6:42:26 PM]