waterless coolant

[EnzoMC]

has anyone heard or used waterless coolant, i done some looking around and has good and bad feedback, lot of concern about on how much of pain it is to replace and issue if you had a coolant leak. * *both points arent a concern, what i'm not sure about is with it running hot, wouldn't the oil start to cook / coat the engine ? some have engines running cooler in traffic which made me interested

wheeler dealers
[video]https://m.youtube.com/watch?v=s-NfA17q0MQ[/video]


long but extreme test
[video]https://m.youtube.com/watch?v=VkNz-ANfUkc[/video]



http://www.evanscoolants.co.uk/

 

[2b1ask1]

I do want to try this on a motor, it seems to have many advantages but little understanding in the wider industry. I particularly like the idea of no expansion so no pressure in the system.

 

[conaero]

I also want to convert to this system when I did the new rad earlier in the year. The problem was the expense. I think it worked out at about £200 as the V8's have a large water system of something like 14 litres so, I needed 3x5L so I didn't bother in the end.

 

[drewf]

I think it's a solution looking for a problem which doesn't really exist for most cars.

It's better than water, fair enough, but vastly more expensive, and for the most part brings no advantages to many of us. The cooling system appears to work very well, and should there be a leak, obtaining a bit of water to top it up is really easy. Getting hold of some of the waterless coolant on a rainy night in Wales might be a tad harder.

If there's a weakness in the system to start with, then I see the point; if like the modern Masers there's never any overheating, then I don't.

 

[zagatoes30]

We tried this in the Q4, running a bit more boost than normal (well quite a bit) temp was always marginal this did make a difference and it allowed more spirited driving. Will probably put it back in once the engine rebuild is complete.

 

[drewf]

On a similar line, has anyone used 'Water Wetter' type products?

I used it in the old Dino, where it very usefully aided the somewhat marginal cooling. I'm pretty sure it's actually repackaged Dishwasher RinseAid at 10 times the price....

 

[2b1ask1]

Used to use water 'wetting' agent in photography to make the developers etc. contact the paper much better but I have no idea what the chemical was; remember sodding about with it on the ponds making the water boatmen sink!

 

[EnzoMC]

I do want to try this on a motor, it seems to have many advantages but little understanding in the wider industry. I particularly like the idea of no expansion so no pressure in the system.

that also intested me, no presure therefore would be better on parts and hoses

I think it's a solution looking for a problem which doesn't really exist for most cars

i agree with you why fix something that doesn't exist especially on our cars
but its new see if this gave any benefits over the existing system.

We tried this in the Q4, running a bit more boost than normal (well quite a bit) temp was always marginal this did make a difference and it allowed more spirited driving. Will probably put it back in once the engine rebuild is complete.

was it easy to replace, do you need compressed air to drain the old fluid ?

 

[RobinD]

As for water wetter then tried it a few times until we woke up and realised it didn't really work

For the waterless system we have it in our race cars which works very well but for a normal road car I can't really see the point, if you have an over heating issue then look at the components rather than the liquid I believe

 

[Wack61]

I'd consider it if it helped control the stress generated in traffic when I've got one eye on the car in front and one on the temp guage watching it start to climb , it's never got hot enough to put the light on and the fans kick in OK so I'm not too worried, much

 

[CatmanV2]

I'd consider it if it helped control the stress generated in traffic when I've got one eye on the car in front and one on the temp guage watching it start to climb , it's never got hot enough to put the light on and the fans kick in OK so I'm not too worried, much

Unless it's broken (recently) it really won't. Don't worry at all

C

 

[zagatoes30]

As long as the fans kick in and bring the temp down don't worry.

The Q4 engine is a tight squeeze in the 155 engine bay and both turbo and manifold are stuck right behind the rad and get really warm, especially when pushed ******* the track. Anything to help keep it cool helps but as part of the rebuild we are looking at all ways of cooling even have acquired a fibreglass bonnet with vents cut to improve air flow. We will see how we get on.

 

[Zep]

I've looked into the waterless coolant for my car, but there are some pretty significant downsides from my point of view. It's pretty expensive for what it is and as Drew points out, if you have a little leak you cannot top up with water, a problem if you are away from home. If you need to change a hose or stat you would need to catch every drop for filtering and reuse.

The specific heat capacity is lower than water (unsurprisingly as only ammonia has a higher SHC and that would be quite unpleasant) so the engine will run a hotter because less heat will be removed for a given flow rate. Plus it is thicker than water / glycol so takes more energy to pump and the parasitic losses in the engine are higher reducing power.

The only advantage is a lack of pressure in the system, but if there isn't a problem with excessive pressure - which I don't think there is with our cars - then there is no benefit.

As an aside, I recently changed the thermostat on my car to see if it affected the cool temps on the motorway, after all the effort, it still runs cool on the motorway. No surprise there!

 

[Wack61]

Unless it's broken (recently) it really won't. Don't worry at all

C

I've ridden bikes for many years until I started looking like the Michelin man in black leather , this car has the same hot oil kind of smell when it starts to heat up in traffic , something I've not smelt in years

It did make me nervous at first but now I realise it's the smell of power baby

 

[CatmanV2]

It did make me nervous at first but now I realise it's the smell of power baby

And the smell that it had leaking rocker gaskets

C

 

[Wack61]

It'll be staying until it's burnt off then , no steam cleaner is going anywhere near it

 

[outrun]

I'd look at this for a classic or a race car. Both can have heat issues that this can help with, for different reasons. As Drew said though, it's a solution for a problem that modern roads cars don't have.