I know a few people using this type of coolant, feedback is all good

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Originally posted by Steviestar

I've always used nulon ultracool in my race cars and in the daily hacks,even use it in my VL Group A which has a stroker 383 twin turbo and it even keeps her happy. Without a doubt the best on the market in my opinion
http://www.nulon.com.au/products/Ultra_Cool/

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I checked this product, according to the site it is only a rust/corrision inhibitor, It doesn't do anything to increase the boiling point of the water and prevent hotspots in the motor from damaging steam pockets etc I'm after a product that does both.

If your going to use the vehicle for track days etc, a non glycol based coolant is the only thing some tracks will allow, hence why i use the Ultra Cool, also non glycol based coolants are for mare efficient in transferring heat from engine as they absorb more heat from the system allowing your cooling system to work more effectively.

Water wetter is good aswell, it's basically the same thing as Nulons Ultra Cool