Generally you should try to use as little glycol as you can get away with in
your climatic zone; unnecessary glycol reduces the specific heat of the coolant
and hence its cooling capacity; I use about 15-20% (Canadian W coast) and to
compensate for the reduced corrosion protection I use an additive such as
No-Rosion; this gives 5 year interval between coolant changes.
rg
From: Oudesluys
Sent: Tuesday, August 22, 2017 1:47 AM
To: healeys at autox.team.net
Subject: Re: [Healeys] Which coolant/antifreeze?
There is no need to add Zerex. It may help in extreme conditions (e.g. racing)
but if everything is new/rebuild it is a waste of money. Make sure your
radiator is rebuild with a fresh and uprated core, preferably with an electric
fan, and use an original SMITHS/Remax/AC sleeved thermostat.
Kees Oudesluijs
Op 22-8-2017 om 6:38 schreef Bruce Steele:
Harold, this is a timely discussion for me, as I have a fresh engine. The
Zerex site indicates that their Racing Super Coolant needs to me mixed at a
ratio of 90% water/10% coolant. Your email suggests you add it to an ethaline
glycol mixture. Is that the case? And how are you diluting it?
Thanks.
Bruce Steele
Brea, CA
1960 BN7
From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf Of Harold
Manifold
Sent: Saturday, August 19, 2017 11:47 AM
To: 'Paul Leeks' mailto:paull at glasgows.co.uk; 'mailto:healeys at
Autox.Team.Net' mailto:healeys at autox.team.net
Subject: Re: [Healeys] Which coolant/antifreeze?
Paul,
May I suggest a 50/50 mixture of Ethylene Glycol antifreeze and water with
the addition of Valvoline?s Zerex Racing Super Coolant additive. The antifreeze
brand is not critical but Zerex does make good coolant products.
Harold
------------------------------------------------------------------------------
From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf Of Paul
Leeks
Sent: Saturday, August 19, 2017 6:27 AM
To: <healeys at Autox.Team.Net>
Subject: [Healeys] Which coolant/antifreeze?
Hi all
I need to replace the coolant/antifreeze and was wondering if it mattered
what type I used?
AH Spares has Castrol anti-freeze at ?11 / ltr, whereas Halfords (local high
street car store) has OAT Antifreeze Concentrate at ?5 / ltr.
I live in temperate Lancashire UK, so I don't need to cope with any
temperature extremes.
So, can I just use the modern one?
Many thanks
Paul
100/6 BN4
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