| [GMCnet] High temp brake fluid helps prevent brake fade [message #234869] |
Thu, 02 January 2014 21:33  |
BobDunahugh
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
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DOT 3 brake fluid has a minimum temp for it's boiling point the conform to federal standers. The word here to pay attention to is the word MINIMUM. The standards for standard DOT 3 DOES NOT say that you can't have a DOT 3 brake fluids boiling point higher. Ford has a high performance DOT 3 brake fluid that has it's boiling point about 175 degrees or more, ( don't remember the exact # ) higher then the standard DOT 3 fluids. It's sold at your Ford dealer in pint containers..At road race track events. I was boiling my brake fluid a lot in my Yenko's. Changed to the Ford fluid. Problem solved. I now use that fluid in the GMC. YES. There are other brake fluids that do have a higher boiling point then standard DOT 3. But, they aren't DOT 3. So they aren't compatible with the fluid that came in the GMC
Bob Dunahugh4 Original Yenko's
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| Re: [GMCnet] High temp brake fluid helps prevent brake fade [message #234884 is a reply to message #234869] |
Thu, 02 January 2014 23:11  |
Emery Stora
Messages: 959
Registered: January 2011
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Bob
Back in the 60's and 70's when I worked for Dow Chemical the three main manufacturers of brake fluid were Dow , Union Carbide and duPont.
Dow was the largest and developed a 550 deg F dry boiling point DOT3 brake fluid. Dow did not sell brake fluid under its name but supplied factory fill for GM, Ford and Chrysler. Ford still sells it. My accounts for brake fluid also included Castrol Oil, EIS, Raybestos, Mobil, Shell, Sun Oil, Atlantic Richfield, Pennzoil and several others.
I have been using the 550 for almost 50 years now in my vehicles including my GMC (since 1981). I have never had a boiling problem (vapor in the lines).
Emery Stora
On Jan 2, 2014, at 8:33 PM, Bob Dunahugh <yenko108@hotmail.com> wrote:
> DOT 3 brake fluid has a minimum temp for it's boiling point the conform to federal standers. The word here to pay attention to is the word MINIMUM. The standards for standard DOT 3 DOES NOT say that you can't have a DOT 3 brake fluids boiling point higher. Ford has a high performance DOT 3 brake fluid that has it's boiling point about 175 degrees or more, ( don't remember the exact # ) higher then the standard DOT 3 fluids. It's sold at your Ford dealer in pint containers..At road race track events. I was boiling my brake fluid a lot in my Yenko's. Changed to the Ford fluid. Problem solved. I now use that fluid in the GMC. YES. There are other brake fluids that do have a higher boiling point then standard DOT 3. But, they aren't DOT 3. So they aren't compatible with the fluid that came in the GMC
> Bob Dunahugh4 Original Yenko's
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| Re: [GMCnet] High temp brake fluid helps prevent brake fade [message #234936 is a reply to message #234869] |
Fri, 03 January 2014 11:40 |
Gadabout
Messages: 124
Registered: March 2013
Location: Edmonton
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Your correct on the Ford Brake fluid, we often use it in the race cars. just ask the Ford Dealer for Heavy Duty Brake Fluid.
Soft Pedal vs Brake Fade is two different problems.
A soft pedal is often caused by air in brake lines, boiled fluid, or worn out brake system components .
Brake fade is a condition were the brake pad and rotor reach a high temperature causing a reduction in friction between the brake pad and rotor. Outside of the race track, this condition can be experienced on a long downhill grade with a heavy vehicle. To prevent this never "ride the brake" down a long hill , use a low gear and let the engine help slow the vehicle.
Other ways to improve braking is the break pad itself, The GMC Caliper is the same one we use on some late model oval cars, Performance Friction makes pads with different torque ranges that fit this caliper. When the snow goes away , I will test a few different pads and post the results.
Carl Harr : Driver NASCAR Pro Series #2
1978 Gadabout-Restoring
1978 Palm Beach
1976 Glenbrook
Prevost Featherlite H3-45
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| Re: [GMCnet] High temp brake fluid helps prevent brake fade [message #234941 is a reply to message #234869] |
Fri, 03 January 2014 13:04 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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| BobDunahugh wrote on Thu, 02 January 2014 20:33 |
DOT 3 brake fluid has a minimum temp for it's boiling point the conform to federal standers. The word here to pay attention to is the word MINIMUM. The standards for standard DOT 3 DOES NOT say that you can't have a DOT 3 brake fluids boiling point higher. Ford has a high performance DOT 3 brake fluid that has it's boiling point about 175 degrees or more, ( don't remember the exact # ) higher then the standard DOT 3 fluids. It's sold at your Ford dealer in pint containers..At road race track events. I was boiling my brake fluid a lot in my Yenko's. Changed to the Ford fluid. Problem solved. I now use that fluid in the GMC. YES. There are other brake fluids that do have a higher boiling point then standard DOT 3. But, they aren't DOT 3. So they aren't compatible with the fluid that came in the GMC
Bob Dunahugh4 Original Yenko's
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Another contributing factor is water in the system. If the system hasn't been purged for a few years, the water will boil and totally disable you.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: [GMCnet] High temp brake fluid helps prevent brake fade [message #234945 is a reply to message #234941] |
Fri, 03 January 2014 13:17 |
James Hupy
Messages: 6806
Registered: May 2010
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There is no substitute for regular maintenance on any mechanical system, be
it GMC braking system, or for that matter, solid rocket booster "O" ring
joints in cold temperatures. It is always wiser to prevent failures before
they occur, than to deal with the results after the fact. If you live in a
very wet or high humidity area, hydraulic brake systems need to be serviced
more frequently. Once a year will probably suffice for bleeding and brake
shoe adjustments. Disc systems are far easier to wear check than drums are,
but perhaps wheel bearing maintenance on disc systems might get ignored
because of that fact. There is no "free lunch" here. Maintain 'em or fix
'em on the road. Your choice.
Jim Hupy
Salem, Or
78 GMC Royale 403
On Jan 3, 2014 11:04 AM, "Bob de Kruyff" <NEXT2POOL@aol.com> wrote:
>
>
> BobDunahugh wrote on Thu, 02 January 2014 20:33
> > DOT 3 brake fluid has a minimum temp for it's boiling point the conform
> to federal standers. The word here to pay attention to is the word
> MINIMUM. The standards for standard DOT 3 DOES NOT say that you can't have
> a DOT 3 brake fluids boiling point higher. Ford has a high performance DOT
> 3 brake fluid that has it's boiling point about 175 degrees or more, (
> don't remember the exact # ) higher then the standard DOT 3 fluids. It's
> sold at your Ford dealer in pint containers..At road race track events. I
> was boiling my brake fluid a lot in my Yenko's. Changed to the Ford fluid.
> Problem solved. I now use that fluid in the GMC. YES. There are other
> brake fluids that do have a higher boiling point then standard DOT 3. But,
> they aren't DOT 3. So they aren't compatible with the fluid that came in
> the GMC
> > Bob Dunahugh4 Original Yenko's
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
> Another contributing factor is water in the system. If the system hasn't
> been purged for a few years, the water will boil and totally disable you.
> --
> Bob de Kruyff
> 78 Eleganza
> Chandler, AZ
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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| Re: [GMCnet] High temp brake fluid helps prevent brake fade [message #235013 is a reply to message #234869] |
Fri, 03 January 2014 23:18 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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| BobDunahugh wrote on Thu, 02 January 2014 21:33 |
DOT 3 brake fluid has a minimum temp for it's boiling point the conform to federal standers. The word here to pay attention to is the word MINIMUM. The standards for standard DOT 3 DOES NOT say that you can't have a DOT 3 brake fluids boiling point higher. Ford has a high performance DOT 3 brake fluid that has it's boiling point about 175 degrees or more, ( don't remember the exact # ) higher then the standard DOT 3 fluids. It's sold at your Ford dealer in pint containers..At road race track events. I was boiling my brake fluid a lot in my Yenko's. Changed to the Ford fluid. Problem solved. I now use that fluid in the GMC. YES. There are other brake fluids that do have a higher boiling point then standard DOT 3. But, they aren't DOT 3. So they aren't compatible with the fluid that came in the GMC
Bob Dunahugh4 Original Yenko's
/gmclist[/url]
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As I remember from researching this a few years back, the WET boiling point for Ford Dot 3 stuff was only marginally (like 5 or 10 degrees) better that plain old DOT 3.
Dot 4, or ATE, or Castrol were better choices
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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