The Ford Barn

FLA48 · 03-05-2012, 01:46 PM

After replacing the clutch on my 48, I bled the brakes, A few weeks later I again bled the brakes. Yesterday I noticed a partial container of synthetic brake fluid next to the empty container of regular brake fluid. If I indeed added the synthetic to the existing non-synthetic brake fluid, did I create a problem?

Mart · 03-05-2012, 02:11 PM

Hello and welcome to the ford barn.

By synthetic, do you mean silicone??

Do the cans have dot numbers on them?

If you mixed silicone and regular type, that might be a problem.

Mart.

Old Henry · 03-05-2012, 02:19 PM

Any "synthetic" brake fluid can be mixed since it is all synthetic except silicone - DOT 5 brake fluid can not be mixed with any other. So, if by "synthetic" you actually mean "silicone - DOT 5" you'll need to replace it all. Otherwise, you're OK.

FLA48 · 03-05-2012, 03:19 PM

It is Preston Synthetic DOT 3, so I guess I lucked out.
Thanks

Mart · 03-05-2012, 04:25 PM

I had some experience testing clutch slave cylinders, and they were failing early. I had used dot 3 fluid. I used dot 4 fluid and they went through the test cycle ok. If and when I buy fluid I always pay the extra for the dot 4.

Mart.

rickmass · 03-06-2012, 10:09 AM

Sponsored Links (Register now to hide all advertisements)

can you use dot 3 on fords and chevy,s.Rickmass

TomO · 03-06-2012, 11:27 AM

Dot 3 is the standard brake fluid that has been in use since the 1930's. It can be used in any Ford or C***.

rickmass · 03-06-2012, 12:13 PM

Thank,s Tom for the come back..Rick

03-05-2012, 01:46 PM	#1
FLA48 Senior Member Join Date: Jul 2011 Location: Conroe TX Posts: 170	Brake Fluids After replacing the clutch on my 48, I bled the brakes, A few weeks later I again bled the brakes. Yesterday I noticed a partial container of synthetic brake fluid next to the empty container of regular brake fluid. If I indeed added the synthetic to the existing non-synthetic brake fluid, did I create a problem?

03-05-2012, 02:11 PM	#2
Mart Senior Member Join Date: May 2010 Location: Solihull, England. Posts: 8,756	Re: Brake Fluids Hello and welcome to the ford barn. By synthetic, do you mean silicone?? Do the cans have dot numbers on them? If you mixed silicone and regular type, that might be a problem. Mart.

03-05-2012, 02:19 PM	#3
Old Henry Senior Member Join Date: Oct 2010 Location: Orem, Utah Posts: 5,762	Re: Brake Fluids Any "synthetic" brake fluid can be mixed since it is all synthetic except silicone - DOT 5 brake fluid can not be mixed with any other. So, if by "synthetic" you actually mean "silicone - DOT 5" you'll need to replace it all. Otherwise, you're OK. __________________ Prof. Henry (The Roaming Gnome) "It is good to have an end to journey toward; but it is the journey that matters, in the end.” *Ursula K. Le Guin in The Left Hand of Darkness

03-05-2012, 03:19 PM	#4
FLA48 Senior Member Join Date: Jul 2011 Location: Conroe TX Posts: 170	Re: Brake Fluids It is Preston Synthetic DOT 3, so I guess I lucked out. Thanks

03-05-2012, 04:25 PM	#5
Mart Senior Member Join Date: May 2010 Location: Solihull, England. Posts: 8,756	Re: Brake Fluids I had some experience testing clutch slave cylinders, and they were failing early. I had used dot 3 fluid. I used dot 4 fluid and they went through the test cycle ok. If and when I buy fluid I always pay the extra for the dot 4. Mart.

03-06-2012, 10:09 AM	#6
rickmass Senior Member Join Date: Jan 2012 Location: mass. Posts: 123	Re: Brake Fluids Sponsored Links (Register now to hide all advertisements) can you use dot 3 on fords and chevy,s.Rickmass

03-06-2012, 11:27 AM	#7
TomO Senior Member Join Date: May 2010 Posts: 362	Re: Brake Fluids Dot 3 is the standard brake fluid that has been in use since the 1930's. It can be used in any Ford or C***. __________________ TomO

03-06-2012, 12:13 PM	#8
rickmass Senior Member Join Date: Jan 2012 Location: mass. Posts: 123	Re: Brake Fluids Thank,s Tom for the come back..Rick