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Location:
North Sydney
Registered:
May 2002
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DOT5.1 Brake fluid? Where can you get it?
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Fri, 14 February 2003 07:39
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I'm after some DOT5.1 Brake fluid? Where can you get it and how much?
I've tried alot of brake places and none of them seem to have it.
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Location:
Eskilstuna, Sweden
Registered:
May 2002
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Re: DOT5.1 Brake fluid? Where can you get it?
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Fri, 14 February 2003 08:58
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Did you try
http://www.racebrakes.com.au/
which are in Sydney and Melbourne
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Re: DOT5.1 Brake fluid? Where can you get it?
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Fri, 14 February 2003 09:11
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AP Dot 5.1 is about $22 for 500 mL. What Youngy said, Racebrakes.
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Location:
Brisbane
Registered:
January 2003
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Re: DOT5.1 Brake fluid? Where can you get it?
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Fri, 14 February 2003 10:43
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Becareful about that stuff
There are a lot of pros and cons for using it.
The most popular brake fluids used in todays cars are DOT 3 and DOT 4, both of which are clear to amber in color.
Sometimes used is DOT 5 fluid which can be recognized by it's purple color. DOT 5 fluids are typically silicone-based. DOT 3 and DOT 4 fluids are polyglycol.
Hydraulic system mineral oil brake fluid [HSMO] is a blend of mineral oil and additives. It is the most rare, the most expensive, and is not compatible with any other fluids.
DOT 5 fluids have been developed for military applications, i.e. for vehicles that could stand in storage for years, without maintenance, yet had to perform immediately when required. They are superior in terms of boiling point retention and corrosion/conservation properties, since they don't absorb water. Use in military vehicles and old timers is still the prime application of silicone based fluids. To date car manufacturers have not moved to use silicone fluids for first fill regular cars for three reasons:
1. Low air solubility, which leads to a spongy brake pedal feel.
2. No water solubility whatsoever; water that gets in the system by accident (e.g. spray water into the reservoir) is then corrosive, can freeze at 0° C or boil at 100° C
3. Silicone fluid does not dissolve car paints. However, paint surfaces contaminated with silicone fluid are almost impossible to repaint due to very poor adhesion.
Dot 5 cannot be used in cars equiped with ABS because of trouble with bleeding..
-If changing from DOT 3 or DOT 4 to DOT 5 or vice versa, it is recommended to change all rubber seals.
It'd be better to buy a high quality DOT4 and change it often, a lot of people have had trouble with seals when switching.
[Updated on: Fri, 14 February 2003 10:46]
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Location:
North Sydney
Registered:
May 2002
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Re: DOT5.1 Brake fluid? Where can you get it?
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Sat, 15 February 2003 00:12
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Sorry Ollygt, thats not entirely true.
I'm talking about DOT5.1 which is completely different to D0T5.
I am after DOT5.1 as in the topic.
-It is mineral(glycol) based not silicone.
-It doesn't give a spongy pedal as it had a lot better
compression factor.
-It has the highest wet boiling point(3%moisture) of all the
fluids
-It doesn't absorb moisture as easily as DOT3, DOT4 or DOT3/4.
-DOT 5.1 can be added on top of DOT3 and DOT4s.
Thats why I'm after DOT5.1
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Location:
North Sydney
Registered:
May 2002
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Re: DOT5.1 Brake fluid? Where can you get it?
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Sat, 15 February 2003 03:30
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I just bought some Motul DOT5.1 Brake Fluid.
It was $18.95 for 500ml from a motorcycle shop.
DOT3 Boiling point 240C
DOT4 Boiling point 245C
DOT5.1 Boiling point 275C
Great for cars with ABS too.
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Banned by his request
Location:
moved to tamworth
Registered:
July 2002
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Re: DOT5.1 Brake fluid? Where can you get it?
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Sat, 15 February 2003 04:29
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we have wilwood 570{298c) and 600+(315c}. the 570 is $15 and the 600+ is $55 from memory. we have used both on the track with cars that do 300km\h+(i.e our cars are faster than the V8 supercars} and they are up to the task no prob.
mick
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Location:
North Sydney
Registered:
May 2002
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Re: DOT5.1 Brake fluid? Where can you get it?
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Sat, 15 February 2003 16:32
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They're probably synthetic though arnt they Mick?
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Banned by his request
Location:
moved to tamworth
Registered:
July 2002
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Re: DOT5.1 Brake fluid? Where can you get it?
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Sat, 15 February 2003 21:58
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no not synthetic! its a dot 3-4 type fluid. they are very good mineral brake fluids. i use AP racing 600 fluid, haha but its f**king expensive.
mick
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Location:
North Sydney
Registered:
May 2002
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Re: DOT5.1 Brake fluid? Where can you get it?
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Sat, 15 February 2003 22:45
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The AP is identical to the Castrol GP 600 I hear. Comes from the same factory from the same batch. The Castrol is half the price though. They just charge for the AP name.
On the DBA tour on Monday night Kevin from SBC told me this.
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Re: DOT5.1 Brake fluid? Where can you get it?
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Sat, 15 February 2003 23:20
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I wanna make a change to some Dot5.1 as well.
But want to do a full flush of my system first.
I suspect the fluid in my car is VERY old.
Is there some sort of brake system flush fluid that can be used ?
My car has ABS, is there any tricks or special steps to bleed an ABS brakes system ?
Any advice would be appreciated.
Thanks
Matt
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Location:
Sydney
Registered:
May 2002
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Re: DOT5.1 Brake fluid? Where can you get it?
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Mon, 17 February 2003 04:47
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Hey SupraGTE,
Where did you get the Motul stuff from? Is it the RBF600 or the DOT5.1?
I got AP Racing from RaceBrakes, but its a bloody long way to get there from North Sydney.
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Location:
North Sydney
Registered:
May 2002
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Re: DOT5.1 Brake fluid? Where can you get it?
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Tue, 18 February 2003 10:44
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Its the DOT5.1 bought from northside motorbikes in artarmon.
Any decent motorbike shop will sell it.
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