Breda: I had been using Castrol LMA DOT 4 for several years. Lately it
seems harder and harder to find, so I have been using NAPA DOT 4 recently
with no problems. I believe new aftermarket seals in the rebuild kits and
in new cylinders are made from rubber that is much more tolerant than the
original girling rubber of 40 or 50 years ago. I would beware of
new-old-stock kits or cylinders which would have old rubber.
Just my $.02
Jim Smith
BN1, BN2, BN6, BN7
----- Original Message -----
From: "Breda O'Sullivan" <conbreda@eircom.net>
To: <healeys@autox.team.net>
Sent: Thursday, August 10, 2006 6:48 AM
Subject: brake and ckutch fluid spec for BN4
> What is the correct spec fluid for the clutch and brakes on a standard
BN4
> system.
>
> My Haynes and factory manual just refer to Castrol girling brake fluid
etc.
>
> Is this Dot 3 or Dot 4?
>
> Will a normal modern day over the counter Dot 4 do, or does it have to
be a
> mineral oil (LHM fluid)
>
> The car was restored in 1992 by the PO, with all new cylinders etc
fitted.
>
> Thanks
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