Coolant
Submitted: Wednesday, May 14, 2003 at 09:43
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Member - Martyn (WA)
Wondering what the feeling is about the best coolant for a cooling system, my engine is all cast iron with aluminum fittings, I use Nulon coolant with a 50 /50 mix and tap water, I've heard some tales about Techtalloy, also tap water versus distilled water, what's the opinions. Any bad experiences with certain brands, I've heard that the Holden coolant is supposed to be the best, but that is reflected in the price. Fire away..............Keep the shiny side up
Reply By: Hugh - Wednesday, May 14, 2003 at 23:27
Wednesday, May 14, 2003 at 23:27
Hi Martyn,
Most all OEMs will recommend an Ethylene Glycol based coolant, typically 50% EG/ 50% distilled water.
I would caution everybody about the leading aftermarket coolants such as Tectalloy, Nulon, etc without noting the Ethylene Glycol concentration. These guys do a great marketing job, especially in clear containers where green coolant must be good right. I work in the engine development business and once you've seen 100% EG, you'll realise how diluted these coolants are. For instance Tectaloy 90Plus, which is marketed toward 4WD, etc is only 33% EG, not 90% as some people believe (read the fine print). The other forms of Tectaloy are even less. If you do buy this stuff then be sure to use it undiluted. Tectaloy do market 100Plus which is 50% EG but I've never seen it. What is interesting is that Tectaloy have a product VPlus which is concentrate EG made to GMH specs. Maybe that tells you something.
I am sure Tectaloy make a good quality product (to Australian Standards even), however just be sure of what you are using and what your manufacturer recommends.
You'll likely get a good quality product, and better price, if you approach a local radiator specialist.
AnswerID:
20087
Follow Up By: Member - Martyn (WA) - Thursday, May 15, 2003 at 08:48
Thursday, May 15, 2003 at 08:48
Hugh,
Keep the shiny side up
FollowupID:
12820
Follow Up By: Member - Martyn (WA) - Thursday, May 15, 2003 at 08:48
Thursday, May 15, 2003 at 08:48
Hugh,
Keep the shiny side up
FollowupID:
12821
Follow Up By: Member - Martyn (WA) - Thursday, May 15, 2003 at 08:48
Thursday, May 15, 2003 at 08:48
Hugh,
Keep the shiny side up
FollowupID:
12822
Follow Up By: Member - Martyn (WA) - Thursday, May 15, 2003 at 08:56
Thursday, May 15, 2003 at 08:56
Bugger,
I've done it again somehow only three times this time round ah
well, the string must be near enough fiished anyway.
Thanks for the great info, the reason I went for the Nulon was because of the higher EG level as you mention. I think I will go and talk to my Nissan spares parts guy about the Nissan Long Life. I've just spent a lot of money getting the engine right and to bugger it up for the price of a container of OEM coolant. A friend of
mine at work is chasing the stray current issue with his commodore, he's on his third rad in two years, I'll
check the pictures out I may be able to help him out as
well.
I suspect that the coolant for the Nissan would be good enough for my Rangie because it's Nissan, I'm not going to get OEM coolant for my "bush hack", the Rover option will be worth more than the car I suspect, never mind the engine.Keep the shiny side up
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