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Australian Falcons Discuss the australian born and bred models here. Includes the 80's 90's and present day Falcons offered by Ford Oz.

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Old 03-11-2004, 01:24   #1 (permalink)
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What coolant to put in the radiator?

I'm currently planning to get the coolant in my radiator and cooling system changed. I've look at some products in the market, including the nulon, valvoline and tectaloy but not quite sure which one should I use. I also found some unfamiliar models from Tectaloy (New(or may be even obsolete?)), so if any one have used them please give opinion about them.

- Nulon Coolant Concentrate (Sounds good with trusty results but some of my frds claim that it actually chews thru rubber pipes and alloy part of their engine as it's too concentrated even at the 2:1 mix)
- Valvoline Coolant Concetrate (Claimed to have 5yr protection but I'm a bit skeptical on their claims)
- Tectaloy 90+ (That's what I used on my old car, doesn't seem to be too bad, but not sure if it works or not in the engine of my na fairlane)
- Tectaloy 100+ (not quite sure how it rates when compared to a 50:50 mix of nulon)
- Tectaloy XP7 (Supposed to be used in utes, 4WD and light commercials. Claimed to be a heavy duty coolant, but can't find any details from the web. It's a 35% ethene glycol mix, about $23 in repco)
- Tectaloy Optimal 33 (Claimed that it can eliminate hotspot(?) on engine block by transferring heat quickly to the coolant (less heat conductive resistance(?)), but can only be found in motorquipe ($35). Again 35% EG mix)

I'm pretty curious about the Optimal 33 and XP7, but not sure if they're good enough to sit in the radiator of my car. Looking forward for all your opinions.
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Old 03-11-2004, 01:33   #2 (permalink)
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Re: What coolant to put in the radiator?

Get the Nulon mix it 1 part coolant to 1 part water, can't go wrong! Dunno what your friends are on about either I have been using it for a couple of years now, can't complain. Maybe they didn't add enough water.
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Old 03-11-2004, 01:37   #3 (permalink)
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Re: What coolant to put in the radiator?

Whatever you do don't use the genuine Ford coolant. It's garbage, and its real corrosive. I just use that Wynns Winter/Summer coolant, only because we buy it in bulk at work, but its good stuff, I don't know if you'll find it in shops, but if you do, its good stuff. I use about 2 litres of it in the whole cooling system, no probs.

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Old 03-11-2004, 01:49   #4 (permalink)
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Re: What coolant to put in the radiator?

The Castrol stuff is pretty good also.
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Old 03-11-2004, 02:16   #5 (permalink)
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Re: What coolant to put in the radiator?

I use Nulon stuff - works fine for me.. I don't know about their four year claim or whatever, I'll be replacing it every year as I always do for all coolants..

Using good quality coolant and getting the system nice and clean is always cheaper than replacing a head gasket - and I've done both in the last six months!!

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Old 03-11-2004, 02:51   #6 (permalink)
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Re: What coolant to put in the radiator?

yup the Nulon Long life coolant is the one i use as well.
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Old 03-11-2004, 07:32   #7 (permalink)
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Re: What coolant to put in the radiator?

i use tectaloy GOLD. $20 for a 1L concetrate, that does 15L.
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Old 03-11-2004, 13:09   #8 (permalink)
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Re: What coolant to put in the radiator?

Yah, Nulon here too . . .
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Old 03-11-2004, 18:00   #9 (permalink)
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Re: What coolant to put in the radiator?

Quote:
Originally Posted by Walkinshaw
i use tectaloy GOLD. $20 for a 1L concetrate, that does 15L.
Thats the one I use. No complaints
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Old 03-11-2004, 18:09   #10 (permalink)
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Re: What coolant to put in the radiator?

Quote:
Originally Posted by Walkinshaw
i use tectaloy GOLD. $20 for a 1L concetrate, that does 15L.
Yep, I use it, good stuff!
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