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Author Topic: Water free coolant - Any good?  (Read 253 times)

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Offline jrgibb

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Water free coolant - Any good?
« on: March 05, 2014, 09:40:32 pm »
In theory, whilst expensive this seems a good idea, more efficient, no corrosion and no pressure in the system??

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Offline smellyermaa

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Re: Water free coolant - Any good?
« Reply #1 on: March 06, 2014, 07:00:26 pm »
Never heard of it. Got a link?

Offline jrgibb

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Offline Duudt

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Re: Water free coolant - Any good?
« Reply #3 on: March 07, 2014, 06:54:18 pm »
I have used it a few times on customer cars at work, with good results.
Used it on triumph's and jaguars, a problem with the jag was that in the summer the normal coolant was always running out of the overflow pipe, now with evans it does not have this problem anymore.

The only reason i would not use Evans is because it's expensive, you need to buy the coolant and prep fluid.
You can use the prep fluid twice, so don't trow away after the first time use.

If you are planning to have the car for a long time, then i think it's a good investment, you never have to change your coolant again, unlike the normal coolant which you have to replace every 2 years.

Offline smellyermaa

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Re: Water free coolant - Any good?
« Reply #4 on: March 08, 2014, 08:42:29 am »
I was looking at that wondering what the cost is for an average car. It would need 2 5L bottles for a golf with a big rad. One wouldn't be enough.

Being a tight-arse, I try to catch the coolant whenever I empty the rad, and put it back in through a strainer. I think that goes double with this stuff.

From what I see on ebay it's going to be over £100 a car, once you've used the prep fluid. I guess that if you've got a car that's marginal for overheating in races, it's a lot cheaper than a blown engine.

I'm also wondering if reduced pressure in the cooling system means that you'll get less parasitic power loss through the water pump? I don't know what sort of loss the water pump causes, but some people do run electric ones for that reason. Viscosity would also matter in this calculation, obviously.

I don't see any mention of the specific heat capacity of their coolant Vs water, based on a quick look. I suspect if it was higher they'd mention it.
« Last Edit: March 08, 2014, 08:48:50 am by smellyermaa »

Offline jrgibb

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Re: Water free coolant - Any good?
« Reply #5 on: March 08, 2014, 12:30:32 pm »
Some stuff here suggesting it's not as efficient . . . .

http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2930974

J

Offline Radfrod

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Re: Water free coolant - Any good?
« Reply #6 on: June 04, 2019, 08:34:22 am »
I have an opinion that Need a little more improvement

 

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