Which Brake Fluid?
Thread Starter
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Joined: Mar 2015
Posts: 95
Likes: 1
From: Gilroy CA
Which Brake Fluid?
Stock 75 Corvette
I already ordered it and I now have the parts, this weekend I'm about to replace the Master Cylinder and upgrade the old rubber brake lines to new stainless steel brake lines the has stock disc brakes and I plan to flush the current fluid.
Which Dot brake Fluid should I add?
How much will I need?
thanks,
Ralph
I already ordered it and I now have the parts, this weekend I'm about to replace the Master Cylinder and upgrade the old rubber brake lines to new stainless steel brake lines the has stock disc brakes and I plan to flush the current fluid.
Which Dot brake Fluid should I add?
How much will I need?
thanks,
Ralph
Melting Slicks
Joined: Apr 1999
Posts: 2,675
Likes: 13
From: Sudbury MA
Brake Fluid
I agree that Dot 3 is what you should use: I asked this same question on this forum many years ago and was surprised that many of the members here replied and told me to buy the Dot 3 at a FORD dealership as it was the best for our Corvettes. It is Ford Dot 3 and I have used it for years.
I did so when I restored my 68 and the Ford parts guy was shocked when I told him who recommended the fluid.
Kurt
I did so when I restored my 68 and the Ford parts guy was shocked when I told him who recommended the fluid.
Kurt
Instructor
Joined: Aug 2010
Posts: 249
Likes: 4
From: Eastern Ky
I just finished a complete replacement of calipers, lines and master cylinder and used Dot 4. It has a higher boiling point than Dot 3 but is not silicone. It is supposed to be compatible with Dot 3.
Team Owner
Joined: Aug 1999
Posts: 30,995
Likes: 98
From: Ontario
It has a higher boiling point but is not necessary for normal driving. But no harm done to use it. I have.
Race Director
Joined: May 2006
Posts: 18,654
Likes: 2,558
the cover says that because perhaps that was the highest available in 76. Not only is the boiling point higher as the number goes up but more importantly the hygrosopic properties increase, resistance to water absorption. So DOT 4 or DOT 5.1 would be an improvement
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Melting Slicks
Joined: Apr 2007
Posts: 3,189
Likes: 111
From: Tolland CT
http://en.wikipedia.org/wiki/DOT_5.1
Team Owner
Joined: Aug 1999
Posts: 30,995
Likes: 98
From: Ontario
That's true. The previous posting referenced DOT 5.1 which is glycol based, not silicone. DOT 5.1 appears to have the same temperature properties as DOT 5.
http://en.wikipedia.org/wiki/DOT_5.1
http://en.wikipedia.org/wiki/DOT_5.1