hadyn Posted June 21, 2005 Share Posted June 21, 2005 Going to get some new brake fluid for when I hopefully get my j-spec tt pads changed. Any recommendations?I've heard Motual 5.1 is good? Whats the best stuff to get that is commonly available? Quote Link to comment Share on other sites More sharing options...
Maxx Posted June 21, 2005 Share Posted June 21, 2005 As you say Motul 5.1 fluid or Motul RBF 600 (DOT 4) if you really want the best and if you can afford it get some braided hoses too. Quote Link to comment Share on other sites More sharing options...
Steve Posted June 21, 2005 Share Posted June 21, 2005 Speak to Oilman on here for fluids. Top bloke Quote Link to comment Share on other sites More sharing options...
Maxx Posted June 21, 2005 Share Posted June 21, 2005 Quote Link to comment Share on other sites More sharing options...
Steve Posted June 21, 2005 Share Posted June 21, 2005 He is actually doing orders in the Traders Section. Quote Link to comment Share on other sites More sharing options...
Guest Terry S Posted June 21, 2005 Share Posted June 21, 2005 Motul RBF 600 from Oilman Quote Link to comment Share on other sites More sharing options...
hadyn Posted June 21, 2005 Author Share Posted June 21, 2005 I've put in some generic Dot 5.1 that I got from Partco, will this be OK? Quote Link to comment Share on other sites More sharing options...
Maxx Posted June 21, 2005 Share Posted June 21, 2005 Should be fine for regular road use Quote Link to comment Share on other sites More sharing options...
Rajinder Posted June 21, 2005 Share Posted June 21, 2005 Motul RBF 600. Bought the fluid plus braided brake pipes and to top it up cw fast road pads. The brake fluid and the braided pipes made such a vast improvement that I didn't even had to use the cw pads as the existing ones had quite a bit of life left in them.(UK brake setup.) Quote Link to comment Share on other sites More sharing options...
Gordon F Posted June 21, 2005 Share Posted June 21, 2005 Whats the best stuff to get that is commonly available? Castrol SRF is regarded as the best brake fluid available at the moment. You can get it from Demon Tweeks. Some people reckon it's a bit expensive, but it's cheaper than a good oil and filter change, and will last longer. Some more info here . Quote Link to comment Share on other sites More sharing options...
lovatt Posted June 21, 2005 Share Posted June 21, 2005 Motul RBF 600 from Oilman i used to boil old old fluid in the reservoir on one of my "medium" runs, the RBF has no trouble at all even on a full on twisty assault Quote Link to comment Share on other sites More sharing options...
merckx Posted June 21, 2005 Share Posted June 21, 2005 Castrol SRF is regarded as the best brake fluid available at the moment. You can get it from Demon Tweeks. Some people reckon it's a bit expensive, but it's cheaper than a good oil and filter change, and will last longer. Some more info here . 55 quid per litre for the Castrol SRF, you're right it's not cheap http://www.demon-tweeks.co.uk/catalogue/product_detail.asp?CLS=ROAD&TLGRP=R004&PGRP=RP042&GRP=RP042&PCODE=CAS1767 The Motul RBF 600 is only about 7 quid per 1/2 litre The castrol stuff might be good but for most of us it's a bit excessive and not necessary don't you think! Quote Link to comment Share on other sites More sharing options...
toyotasuprauk Posted June 21, 2005 Share Posted June 21, 2005 How many litres do you need? Do you know if you can get the Motul RBF 600 from part co? Quote Link to comment Share on other sites More sharing options...
Gamer Posted June 21, 2005 Share Posted June 21, 2005 How many litres do you need? Do you know if you can get the Motul RBF 600 from part co? I can get Motul 600 by the case at a decent price delivered to my home. I could pick one up for you if you are interested. I belive the price worked out to be below £5.50 per 1/2 litre. Let me know if you are interested and I will pick one up.... Quote Link to comment Share on other sites More sharing options...
Gordon F Posted June 21, 2005 Share Posted June 21, 2005 The castrol stuff might be good but for most of us it's a bit excessive and not necessary don't you think! Yes it probably is, plus the fact that they recommend changing it every 18 months, so it works out you are paying £37 a year for brake fluid Ive seen the figures for the stuff and use it in my car, but I'm sure I wouldnt be able to tell the difference from most other fluids when driving the car. I have a J-spec car and 1 litre is more than enough to change all the fluid in the system. I have heard that the traction control system has to be bled on UK cars so that may take a little bit more. Hopefully a UK owner can answer that. Quote Link to comment Share on other sites More sharing options...
hadyn Posted June 21, 2005 Author Share Posted June 21, 2005 How many litres do you need? Do you know if you can get the Motul RBF 600 from part co? I only used about 500ml for my j-spec brakes Quote Link to comment Share on other sites More sharing options...
merckx Posted June 21, 2005 Share Posted June 21, 2005 Yes it probably is, plus the fact that they recommend changing it every 18 months, so it works out you are paying £37 a year for brake fluid Ive seen the figures for the stuff and use it in my car, but I'm sure I wouldnt be able to tell the difference from most other fluids when driving the car. I have a J-spec car and 1 litre is more than enough to change all the fluid in the system. I have heard that the traction control system has to be bled on UK cars so that may take a little bit more. Hopefully a UK owner can answer that. Not so bad if you just need the one bottle though. I don't think the Motul RBF stuff lasts that long neither. Must be dependent on how hard you use the brakes though. I was reading an article the other day saying it's not a particularly good idea to use the cheaper one man pressure bleeding kits as their is no barrier between the air and the fluid. Air can be forced into the fluid which isn't good. I'm not really sure to what extent a problem this is! The more expensive kits use a diagphram to keep the air separate from the fluid so they cannot mix. Instead of using the cheaper kits some people recommend doing it the old fashioned way of pumping the brake pedal. Also, it's not a good idea to store an opened bottle of fluid for any length of time and then use it. Any thoughts? Quote Link to comment Share on other sites More sharing options...
Gordon F Posted June 21, 2005 Share Posted June 21, 2005 The SRF doesn't really attract moisture, so I have no qualms about using an opened tin to top up as the pads wear down, as long as the lid has been kept on the tin. I've never tried any of the one man kits. I always bleed the brakes with all the wheels off and the car up on axle stands and the engine running. I have someone pumping the brake pedal (normally the wife!) and bleed the fluid through each caliper (nsr, then osr, nsf and osf), until the system is full. Then pressure bleed each caliper, top the system up, and check for leaks by having someone stand on the pedal while looking round all the brake hoses and calipers. Make sure you tighten the bleed nipples Quote Link to comment Share on other sites More sharing options...
Markie Posted June 21, 2005 Share Posted June 21, 2005 Is it hard to replace the whole fluid then? Have to bleed it out through one of the bleed valves on a caliper I am guessing? Quote Link to comment Share on other sites More sharing options...
Gordon F Posted June 21, 2005 Share Posted June 21, 2005 Is it hard to replace the whole fluid then? Have to bleed it out through one of the bleed valves on a caliper I am guessing? No, start at the osr caliper and bleed the fluid through until you get clean fluid bleeding out. Then do the same at the osr, nsf, and finally the osf caliper, when all the fluid bled out should be clean. Pressure bleeding involves somebody standing on the brake pedal, while you open and close the bleed nipple quickly. Do this 3 or 4 times on each bleed nipple until there is clear fluid (no bubbles) being bled out. Quote Link to comment Share on other sites More sharing options...
JohnA Posted June 22, 2005 Share Posted June 22, 2005 ... I belive the price worked out to be below £5.50 per 1/2 litre. Similar to mr "T" then Quote Link to comment Share on other sites More sharing options...
Guest Terry S Posted June 22, 2005 Share Posted June 22, 2005 The SRF doesn't really attract moisture, so I have no qualms about using an opened tin to top up as the pads wear down, as long as the lid has been kept on the tin. I thought all synthetic brake fluids attracted moisture?? Quote Link to comment Share on other sites More sharing options...
Gordon F Posted June 22, 2005 Share Posted June 22, 2005 I thought all synthetic brake fluids attracted moisture?? SRF is much less hygroscopic than the usual brake fluids and its performance doesn't tail off as much through moisture absorbtion Quote Link to comment Share on other sites More sharing options...
Guest Terry S Posted June 22, 2005 Share Posted June 22, 2005 But the recommendation to change is due to moisture? I will stick with RBF and change yearly for the price difference! Quote Link to comment Share on other sites More sharing options...
Gordon F Posted June 22, 2005 Share Posted June 22, 2005 But the recommendation to change is due to moisture? I will stick with RBF and change yearly for the price difference! The original question was what is the best fluid commonly available. That is Castrol SRF. Whether, or not, it is the most cost effective is a different matter entirely Quote Link to comment Share on other sites More sharing options...
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