Which brake fluid

Talk about the E-Type Series 1
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jamesmatheson
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#1 Which brake fluid

Post by jamesmatheson » Wed May 09, 2018 6:50 pm

Hello everyone, I have s1 2+2 , which brake fluid is best recommended to use please?

James :bigrin:
S1.5 2+2 RHD

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phil.dobson@mac.com
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#2 Re: Which brake fluid

Post by phil.dobson@mac.com » Wed May 09, 2018 7:12 pm

If you are not using silicone then I just use a standard DOT 4 mineral fluid.

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chrisfell
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#3 Re: Which brake fluid

Post by chrisfell » Wed May 09, 2018 8:30 pm

Subject comes up quite regularly. I use 5.1. It is not expensive and has a higher heat threshold than 3 or 4.

A point to note. The new MOT rules include a visual check on the condition of brake fluid. Dirty fluid is a fail.
Chris '67 S1 2+2

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Fasthound1963OTS
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#4 Re: Which brake fluid

Post by Fasthound1963OTS » Sun May 13, 2018 5:00 pm

The guys at R&R Auto (Sterling, VA, USA) who’ve been keeping British cars on the road since the mid-1970’s swear by Castrol, so that’s what I am using.

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1963 3.8L S1 OTS - apparently resurrected from multiple sources because not a single number matches :wink:

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jamesmatheson
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#5 Re: Which brake fluid

Post by jamesmatheson » Tue May 15, 2018 5:18 am

Thanks for the reply’s, any idea on the quantity needed for a full system change?
S1.5 2+2 RHD

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cactusman
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#6 Re: Which brake fluid

Post by cactusman » Tue May 15, 2018 6:55 am

If you are just rinsing through a filled and air free system and not trying to force air bubbles out then a litre should be plenty. If you are filling an empty system and need to force air bubbles out you will probably wind up using more than a litre... :bigrin:
Julian the E-type man
1962 FHC
1966 MGB....fab little car too

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Jeremy
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#7 Re: Which brake fluid

Post by Jeremy » Thu May 17, 2018 10:15 pm

I filled my brake and clutch systems from empty, that's new everything and completely empty, and bled them, with 1 litre. There was a bit left over, not much. If you're flushing out old/contaminated stuff I think you would need more.
Jeremy
1967 S1 4.2 FHC in slowly converging bits

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