dot 3 versus dotr 4 for street use, which is best
#2188247
11/02/16 07:50 PM
11/02/16 07:50 PM
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Joined: Aug 2003
Posts: 43,096
Bend,OR USA
Cab_Burge
OP
I Win
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OP
I Win
Joined: Aug 2003
Posts: 43,096
Bend,OR USA
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I'm putting another junk yard reject  car (1966 Dodge Coronet deluxe BB 4 speed car) together for limited street use, not a daily driver or road course race car. I put a SSBC front disc brake kit on it and it has the standard 10.5x2.5 rear drum brakes with a 1 1/16 bore size Dodge Caravan M,.C. Which type bake fluid would be the best for this application  thanks in advance, I'm a drag racer and street guy, not a roundy round racer or autocross racer   Thanks in advance 
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: dot 3 versus dotr 4 for street use, which is best
[Re: Cab_Burge]
#2188263
11/02/16 08:08 PM
11/02/16 08:08 PM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
master
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master
Joined: Feb 2011
Posts: 4,302
Nebraska
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I use 4. You may find that bore of master not to your liking in a manual setup.
Mopar to the bone!!!
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Re: dot 3 versus dotr 4 for street use, which is best
[Re: 72Swinger]
#2188293
11/02/16 08:43 PM
11/02/16 08:43 PM
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Joined: May 2003
Posts: 96,649
On The Boat, On The Lake, Wa. ...
amxautox
Still Retired. Still Posting on Moparts. A Lot.
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Still Retired. Still Posting on Moparts. A Lot.
Joined: May 2003
Posts: 96,649
On The Boat, On The Lake, Wa. ...
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JUST NOW!!! on Mythbusters that principle was proven. A 1" dia hose, Adam blowing into the hose. Can lift a 1 1/8th pound weight.
The same hose, blowing into a plastic bag of whatever size it was, say 1 foot by 1 foot, he could lift 125 pounds. Yes he did state what the square inches was on the bag, and it was even drawn out on the bag, but I forget what it was.
Tom
"Everyone should believe in something; I believe I'll go fishing."
-Henry David Thoreau
Men and fish are alike. They both get into trouble when they open their mouths
author unknown
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Re: dot 3 versus dotr 4 for street use, which is best
[Re: amxautox]
#2188414
11/02/16 11:23 PM
11/02/16 11:23 PM
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Joined: Aug 2003
Posts: 43,096
Bend,OR USA
Cab_Burge
OP
I Win
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OP
I Win
Joined: Aug 2003
Posts: 43,096
Bend,OR USA
|
JUST NOW!!! on Mythbusters that principle was proven. A 1" dia hose, Adam blowing into the hose. Can lift a 1 1/8th pound weight.
The same hose, blowing into a plastic bag of whatever size it was, say 1 foot by 1 foot, he could lift 125 pounds. Yes he did state what the square inches was on the bag, and it was even drawn out on the bag, but I forget what it was. VAS ES LOS, Muchacho? What does that(Adam, the fairy tale teller blowing on a hose) have to do with dot 4 versus dot 3 brake fluid differences?
Last edited by Cab_Burge; 11/03/16 03:58 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: dot 3 versus dotr 4 for street use, which is best
[Re: Cab_Burge]
#2188426
11/02/16 11:36 PM
11/02/16 11:36 PM
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Joined: May 2003
Posts: 96,649
On The Boat, On The Lake, Wa. ...
amxautox
Still Retired. Still Posting on Moparts. A Lot.
|
Still Retired. Still Posting on Moparts. A Lot.
Joined: May 2003
Posts: 96,649
On The Boat, On The Lake, Wa. ...
|
JUST NOW!!! on Mythbusters that principle was proven. A 1" dia hose, Adam blowing into the hose. Can lift a 1 1/8th pound weight.
The same hose, blowing into a plastic bag of whatever size it was, say 1 foot by 1 foot, he could lift 125 pounds. Yes he did state what the square inches was on the bag, and it was even drawn out on the bag, but I forget what it was. VAS ES LOS, Muchacho? What does that(Adam, the fairy tale teller blowing on a hsoe) have to do with dot 4 versus dot 3 brake fluid differences? Because the size of the master cylinder bore was mentioned.
Tom
"Everyone should believe in something; I believe I'll go fishing."
-Henry David Thoreau
Men and fish are alike. They both get into trouble when they open their mouths
author unknown
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Re: dot 3 versus dotr 4 for street use, which is best
[Re: Cab_Burge]
#2195509
11/13/16 01:34 AM
11/13/16 01:34 AM
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Joined: Feb 2010
Posts: 1,645
Phila. Pa.
Mattax
top fuel
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top fuel
Joined: Feb 2010
Posts: 1,645
Phila. Pa.
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DOT 4 will likely have slightly higher boiling points - which is of interest if you will be driving some place with long downhills. The FMVSS only mandates the minimum boiling points so some DOT3 will have higher BP than DOT4s. A decent summary and link to the Brake fluid FMVSS DOT standards here: http://www.stoptech.com/technical-support/technical-white-papers/brake-fluidHowever Valvoline makes a brake fluid that meets both DOT 3 and 4. According to the MSDS, it does not contain Borate estor (as is typical in DOT 4s according to the linked article). My personal experience has been that it does not absorb moisture as quickly as Castrol's LMA DOT4. I bleed the brakes every year - usually in the spring or early summer.
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