Coolant

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merlinpjl

merlinpjl

Active Member
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East Lancashire, on the edge of the Pennine Moors.
PHP:
I was watching an episode of "Wheeler Dealers" the other day, and they were working on a Triumph TR6 which they suggested suffered from cooling issues......familiar I thought.

The mechanic, Edd China, replaced alsorts, but he also replaced the coolant with a waterless version.

The coolant that he put in freezes at -40c and doesn't boil till +180c.

Because the coolant has a very high boiling point, it was stated that the pressure due to lack of expansion in the liquid was quite low.

Now that sounds like a good idea to me!

I have gone through the incredibly expensive process of replacing most of my engine and cooling system etc....

Does anyone know what the liquid is called, how much and more importantly has anyone tried it in a Petrol P38?

Thoughts please?
 
Last edited:
Flippin expensive. Useful if you're racing (preferably sponsored) but a bit of a waste on a road car. Especially if you like to change your coolant regularly.
 
The problem with Rover V8s is the fact that they were overbored to get the 4.0 engine without any block mods. Engines used to run at 74 degrees in summer and 84 degrees in winter, it was common practice to change the thermostat when cars came in for antifreeze at the start of winter. When the new emission regulations came in engine running temp was increased to around 89 degrees. To meet emission standards more easily. This is when the V8s problems started the larger expansion and contraction of the block causes it to crack. The cooling system is pretty marginal at best so if not maintained will cause big problems. Putting something in that would allow the system to run even hotter is not a good idea in my view. Plus the fact Ed China is a bloody clown.
 
wammers said:
The problem with Rover V8s is the fact that they were overbored to get the 4.0 engine without any block mods. Engines used to run at 74 degrees in summer and 84 degrees in winter, it was common practice to change the thermostat when cars came in for antifreeze at the start of winter. When the new emission regulations came in engine running temp was increased to around 89 degrees. To meet emission standards more easily. This is when the V8s problems started the larger expansion and contraction of the block causes it to crack. The cooling system is pretty marginal at best so if not maintained will cause big problems. Putting something in that would allow the system to run even hotter is not a good idea in my view. Plus the fact Ed China is a bloody clown.
Click to expand...

+1 on that:)
 
does anyone actually belive that he does all the work on his own i dont think so. if you look at the credits they have a mechanical consultant called paul on there. i reckon he does a bit then goes for cup of tea and a buttie while a team does the job then comes back to show him finishing the job off. clown maybe but a wealthy one at that :)
 
waddy1200 said:
does anyone actually belive that he does all the work on his own i dont think so. if you look at the credits they have a mechanical consultant called paul on there. i reckon he does a bit then goes for cup of tea and a buttie while a team does the job then comes back to show him finishing the job off. clown maybe but a wealthy one at that :)
Click to expand...

The nonsense talked mainly by Mick Brewer on that show is unbelievable at times.
 
And don't forget that they're out to make money so may have been paid to covertly advertise the stuff.

Cynical? me?
 
You could up the antifreeze :) but 50/ 50 is recommended for ours



Water is one of the most effective fluids for holding heat, but water freezes at too high a temperature to be used in car engines. The fluid that most cars use is a mixture of water and ethylene glycol (C2H6O2), also known as antifreeze. By adding ethylene glycol to water, the boiling and freezing points are improved significantly.
Fluid - Freezing Point - Boiling Point
Pure Water: 0 C / 32 F - 100 C / 212 F
50/50 mix of C2H6O2/Water: -37 C / -35 F - 106 C / 223 F
70/30 mix of C2H6O2/Water: -55 C / -67 F - 113 C / 235 F
The temperature of the coolant can sometimes reach 250 to 275 F (121 to 135 C). Even with ethylene glycol added, these temperatures would boil the coolant, so something additional must be done to raise its boiling point.



That would be pressure
 
With 15 pound pressure cap water will not boil until it reaches 242 degrees F. Running a Rover V8 at anything like that temp will cause it to fall apart long before it boils over.:):)
 
Wammers

I don't think they are suggesting that the engine runs hotter, in fact I doubt it would as the thermostat (if it's a good one!) will kick in at the same temperature and allow the radiator to do it's job as normal.

The advantage that they are suggesting is that the lack of water content will reduce the corrosion of the metals in the engine, thus leading to less build up of crap in the radiator which has to be a good thing.

But I do agree, it is very expensive however, if it will protect my cooling system and keep it operating for longer, it might in turn protect the engine for longer.

I take it no one has tried it then.
 
for that stuff to work properly you wouldnt you have to make sure the whole system was flushed through thoughly removing all traces of old coolant before useing it.it would be cheaper to back fulsh the whole system every 6 to 12 months wouldnt it ?
 
waddy1200 said:
for that stuff to work properly you wouldnt you have to make sure the whole system was flushed through thoughly removing all traces of old coolant before useing it.it would be cheaper to back fulsh the whole system every 6 to 12 months wouldnt it ?
Click to expand...

There's a pre flush you have to do, and you have to get every drop of water/ glycol out, that stuff is expensive, and personally don't think it's worth it over regular antifreeze
 
merlinpjl said:
Wammers

I don't think they are suggesting that the engine runs hotter, in fact I doubt it would as the thermostat (if it's a good one!) will kick in at the same temperature and allow the radiator to do it's job as normal.

The advantage that they are suggesting is that the lack of water content will reduce the corrosion of the metals in the engine, thus leading to less build up of crap in the radiator which has to be a good thing.

But I do agree, it is very expensive however, if it will protect my cooling system and keep it operating for longer, it might in turn protect the engine for longer.

I take it no one has tried it then.
Click to expand...

If you want to pay £142.00 to fill your radiator be my guest. A 50/50 mix of antifreeze and deionised or distilled water for £25.00 will have much the same effect. And will be a whole lot cheaper.
 
merlinpjl said:
De-ionised water? I have been using tap water and anti-freeze.

What effect does the de-ionised water have?
Click to expand...

It is the oxygen dissolved in the water that causes corrosion. Have you got a dehumidifier? Save the water from that and use it for your antifreeze mix. That is why you use distilled water in batteries, so the oxygenated water does not corrode the plates.
 
wammers said:
It is the oxygen dissolved in the water that causes corrosion. Have you got a dehumidifier? Save the water from that and use it for your antifreeze mix. That is why you use distilled water in batteries, so the oxygenated water does not corrode the plates.
Click to expand...

And to remove minerals :)
 
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