Coolant: Anyone tried this?

[TT Tim]

Wondering if anyone had any comments, positive or negative about this stuff:

http://www.evanscooling.com/html/npgPls.htm

Tim

[morebeanz]

I've not tried it, but I am uncertain as to the benefits of the product. I would have thought that a "boil over" is an indicator of poor cooling, or an engine problem and ought to be fixed at source. Allowing the engine to run hotter is probably not the solution - unless I have missed the point there?

I suppose if you have local hotspots within the cooling system, it will prevent the localised vapor lock type of problem though...

[longbow]

Looks good, I'd give it a go.

[markh1]

Yeah it certainly looks like its worth a go. I could not find a price for it on that link though

[TT Tim]

markh1 said:

Yeah it certainly looks like its worth a go. I could not find a price for it on that link though

Are you sitting down?

It's £47 a US Gallon/3.77 litres!

Tim

[ro_butler]

morebeanz said:

I've not tried it, but I am uncertain as to the benefits of the product. I would have thought that a "boil over" is an indicator of poor cooling, or an engine problem and ought to be fixed at source. Allowing the engine to run hotter is probably not the solution - unless I have missed the point there?

I suppose if you have local hotspots within the cooling system, it will prevent the localised vapor lock type of problem though...

Agreed. It sounds like running your engine on anti-freeze (+ a few additives). Ok I know anti freeze is ethylene glycol and this substance is propylene glycol but close enough.

I always thought that adding anti freeze to water reduced its cooling efficiency which is why some people run with pure water with some water wetter added to reduce the surface tension (and therby reduce the air issues)

[350Matt]

You might want to look at the viscosity figures, I get the impression its like custard at low temps

Matt

[ro_butler]

350Matt said:

You might want to look at the viscosity figures, I get the impression its like custard at low temps

Matt

Yep, now you come to mention it I am sure antifreeze has a lower specific heat capacity and lower thermal conductivity than water, so I'm guessing this stuff won't be better than water either.

[Billy_rfc]

I'd stick with some quality anti freeze to keep the rust at bay and thats it!

[ridds]

ro_butler said:

350Matt said:

You might want to look at the viscosity figures, I get the impression its like custard at low temps

Matt

Yep, now you come to mention it I am sure antifreeze has a lower specific heat capacity and lower thermal conductivity than water, so I'm guessing this stuff won't be better than water either.

Yep bang on. any more than 50:50 in a road car and it will loose less heat. Deionised water and water wetter is the best to use. Just don't park it in a very cold place.

[AlVal]

My feeling (Im waiting to be flamed here!) is that water wetter is a con job , and that the stuff I've moved to (motul inugel at £18 per 5L) is the dogs danglies. As always happy to be proven wrong!

[longbow]

I use toyota longlife, its a bright red colour and comes ready mixed. It has corrosion inhibitors and is more resistant to boiling than water/glycol mix. It also has added lubricants to keep the water pump in tip top shape. Car runs sweet with it, and temps have never gone over 95 degrees. Costs around £15 for 5 litres too.....

[Boosted LS1]

I build Darton engines and they recommend this product highly. I've heard some amazing things about it. I think catterpillar use it also for all their heavy plant machinery. I haven't used it myself but intend to on my next project. You could contact Darton and ask them why they recommend it if you'r interested.

Boosted.

[AlVal]

longbow said:

I use toyota longlife, its a bright red colour and comes ready mixed. It has corrosion inhibitors and is more resistant to boiling than water/glycol mix. It also has added lubricants to keep the water pump in tip top shape. Car runs sweet with it, and temps have never gone over 95 degrees. Costs around £15 for 5 litres too.....

agreed, ran that stuff on my mr2, comes in silver/red packaging if i remember, seemed to work very well, I can't remember if it was premixed though? its as expensive as the motul if its that price premixed!