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Brake Fluid DOT 3 Synthetic- any Good? #2387750
10/15/17 03:10 PM
10/15/17 03:10 PM
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Posts: 6,094
KY
65pacecar Offline OP
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65pacecar  Offline OP
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Has anyone tried the Synthetic version of DOT 3? I assume it doesn't destroy paint like the old stuff. I have used Dot 5 in a recent build, is the DOT 3 Synthetic a better route for the old cars, or does it make much difference vs. Dot 5?

Re: Brake Fluid DOT 3 Synthetic- any Good? [Re: 65pacecar] #2387780
10/15/17 04:31 PM
10/15/17 04:31 PM
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Central Florida
larrymopar360 Offline
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Originally Posted By 65pacecar
Has anyone tried the Synthetic version of DOT 3? I assume it doesn't destroy paint like the old stuff. I have used Dot 5 in a recent build, is the DOT 3 Synthetic a better route for the old cars, or does it make much difference vs. Dot 5?

I put DOT 3 syntetic in my '89 Diplomat (if you consider that older car) without realizing it was synthetic until it was too late. No problems whatsoever.


Facts are stubborn things.
Re: Brake Fluid DOT 3 Synthetic- any Good? [Re: 65pacecar] #2387826
10/15/17 07:13 PM
10/15/17 07:13 PM
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Jacksonville, FL
Chris2581 Offline
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DOT 3 will still harm paint. Only DOT 5 which is a silicone fluid will not.


Nautilus Racing-
We use Superformance gaskets and Turbo Action converters/products.
Re: Brake Fluid DOT 3 Synthetic- any Good? [Re: Chris2581] #2387853
10/15/17 08:31 PM
10/15/17 08:31 PM
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IN
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ahy Offline
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I think all brake fluid is "synthetic". They are all mixable (even silicone! though not recommended). No problem with DOT 3 "synthetic" mixing.

Re: Brake Fluid DOT 3 Synthetic- any Good? [Re: Chris2581] #2387866
10/15/17 09:16 PM
10/15/17 09:16 PM
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Posts: 6,094
KY
65pacecar Offline OP
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65pacecar  Offline OP
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KY
Originally Posted By Chris2581
DOT 3 will still harm paint. Only DOT 5 which is a silicone fluid will not.


Thanks. I'll stick with dot 5 then since I've had good luck with it. I was st Meijer and saw the dot 3 synthetic and was just wondering.

Re: Brake Fluid DOT 3 Synthetic- any Good? [Re: 65pacecar] #2387942
10/15/17 11:56 PM
10/15/17 11:56 PM
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Posts: 1,514
Pittsburgh,PA
RTSrunner Offline
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Don't mix DOT 5 with DOT 3 or 4,serious seal swelling will result.
RT

Re: Brake Fluid DOT 3 Synthetic- any Good? [Re: RTSrunner] #2387945
10/16/17 12:02 AM
10/16/17 12:02 AM
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KY USA
mopargem Offline
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Originally Posted By RTSrunner
Don't mix DOT 5 with DOT 3 or 4,serious seal swelling will result.
RT

Sounds like a warning for Viagra laugh2


68 Polara 500...LL1 Y7 M6X
69 Hemi road runner...X9 X9 M6X
69 A12 road runner....R4 R4 M6X
69 ModTop Super Bee...F6 V1H M6W
69 Polara 500...B3 W1 M6W
70 AAR 'cuda...EW1 EW1 H4X9
71 GTX...FJ6 V1X P6X9
71 Duster 340...FJ6 V24 L6X9
72 Satellite FE5 V4W C2XW
74 'cuda 360...KB5 V1X A6X9
08 SRT Challenger #234



Re: Brake Fluid DOT 3 Synthetic- any Good? [Re: mopargem] #2388006
10/16/17 03:11 AM
10/16/17 03:11 AM
Joined: Nov 2003
Posts: 1,514
Pittsburgh,PA
RTSrunner Offline
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Originally Posted By mopargem
Originally Posted By RTSrunner
Don't mix DOT 5 with DOT 3 or 4,serious seal swelling will result.
RT

Sounds like a warning for Viagra laugh2


Disclaimer: Don't drink them either!

Last edited by RTSrunner; 10/16/17 03:12 AM.
Re: Brake Fluid DOT 3 Synthetic- any Good? [Re: RTSrunner] #2388225
10/16/17 04:03 PM
10/16/17 04:03 PM
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Rio Linda, CA
John_Kunkel Offline
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Originally Posted By RTSrunner
Don't mix DOT 5 with DOT 3 or 4,serious seal swelling will result.
RT


Myth. In order to receive DOT certification, all DOT fluids must be able to coexist in the same system with no ill effects.


I'm supposed to respect my elders, but its getting harder and harder for me to find one now.
Re: Brake Fluid DOT 3 Synthetic- any Good? [Re: 65pacecar] #2388240
10/16/17 04:39 PM
10/16/17 04:39 PM
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Ohio
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jlatessa Offline
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Ohio
Correct John, my NAPA guys showed me written certification of compatibility.

Joe

Re: Brake Fluid DOT 3 Synthetic- any Good? [Re: 65pacecar] #2388872
10/17/17 06:03 PM
10/17/17 06:03 PM
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SD
Z
zrxkawboy Offline
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Marketing gimmick. ALL brake fluid is synthetic.


It's Swifty! Swifty, you toad sucker!
Re: Brake Fluid DOT 3 Synthetic- any Good? [Re: zrxkawboy] #2388966
10/17/17 09:04 PM
10/17/17 09:04 PM
Joined: Jan 2011
Posts: 2,827
Central Florida
larrymopar360 Offline
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larrymopar360  Offline
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Central Florida
Originally Posted By zrxkawboy
Marketing gimmick. ALL brake fluid is synthetic.
But it wasn't always right?


Facts are stubborn things.

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