Evans Waterless coolant
Discussion
Has anyone used this stuff on a long term basis in their RV8:
http://www.evanscooling.com/
Claims to prevent overheating; but, call me an old cynic, there's got to be a gotcha in there somewhere?
http://www.evanscooling.com/
Claims to prevent overheating; but, call me an old cynic, there's got to be a gotcha in there somewhere?
Thought I do a bit of reading on Evans and found this Cobra thread discussing its use:
http://www.clubcobra.com/forums/all-cobra-talk/105...
So I'm still undecided.
Hoofa did you alter the cooling system on your car? Looking at your engine (5.4 SC) I should imagine that belts out some heat. Is oil temp an issue on your car?
http://www.clubcobra.com/forums/all-cobra-talk/105...
So I'm still undecided.
Hoofa did you alter the cooling system on your car? Looking at your engine (5.4 SC) I should imagine that belts out some heat. Is oil temp an issue on your car?
I does not have to get rid of all the h2o but what it leaves is diluted chemically with the prep fluid to a point that it is compatible with the waterless coolant. Being a chemical with a much higher boiling, so that even if you have a car that has an overheating problem and that heat is still your enemy, But the fact that the fluid will not turn in to steam is a great asset. I know that the Evans has been used by someone with a TVR living in the south of France and has confirmed that the car is running a few degrees cooler and he no longer has the worry about it boiling over in traffic jams on a very hot day (they have been having +40deg days down there).
Edited by Challenger C4s on Sunday 26th August 11:53
What happens if you’re going on a run say to Le Mans and you loose a lot of coolant (a pipe blows off)... I'm assuming you need to top up with this stuff... and not water.. Is it available everywhere?... Or you’re touring Europe and you get a mild rad leak??
Does it have anything else to offer... May be its expansion is less at temp so your system runs at a low pressure??
Does it have anything else to offer... May be its expansion is less at temp so your system runs at a low pressure??
Well I put it in when I changed my rad and hoses, you should never get a hose go, you could just put normal water in but it would need a complete,drain and refill afterwards. The bottom line is I keep a bottle in the boot, the result is the car does run cooler but then I need that as its a 5.4 with a large rotrex on it.
Challenger C4s said:
I does not have to get rid of all the h2o but what it leaves is diluted chemically with the prep fluid to a point that it is compatible with the waterless coolant. Being a chemical with a much higher boiling, so that even if you have a car that has an overheating problem and that heat is still your enemy, But the fact that the fluid will not turn in to steam is a great asset. I know that the Evans has been used by someone with a TVR living in the south of France and has confirmed that the car is running a few degrees cooler and he no longer has the worry about it boiling over in traffic jams on a very hot day (they have been having +40deg days down there).
Well, I've run my Chimaera in over 40 degree heat stuck in the most horrific South of France traffic jams loads of times.Edited by Challenger C4s on Sunday 26th August 11:53
I've never seen the gauge rise above 92 degrees & I've never had an issue with good old Comma antifreeze with Watford tap water mix.
The car runs a standard rad & fans, an 82 degree thermostat & old school rubber hoses.
The nice thing about water is it's very cheap, it's also readily available and famously difficult to set fire to
.The internal combustion engine has been successfully cooled by water in the most extreme conditions for well over a century.
I cant help feeling waterless coolants are solving a problem that simply doesn't exist for the average motorist.
I would suggest we are getting duped here for the benefit of someone else's personal gain while at the same time introducing a potential fire hazard.
Then there's the cost of the stuff
Don't get sucked in by the marketing hype, stick with your tried & tested antifreeze & water mix and change it every 3 years or so.
Then spend your hard earned money on something worthwhile.
THREEFISHORANGE said:
Funnily enough Edd China used Evans waterless coolant on "wheeler Dealers" last night on an old TR6
It was that Program that made me ask the Question! As some of you know I am running a 6.3 LS1 and was just very interested in anything that will help keep the engine cooler. I am planning trip around south france in the griffith in 2013 and 2014. argoose said:
It was that Program that made me ask the Question! As some of you know I am running a 6.3 LS1 and was just very interested in anything that will help keep the engine cooler. I am planning trip around south france in the griffith in 2013 and 2014.
I have trialed it in my race car it wont keep the engine cooler,Its boiling point is 180 deg, so the coolant doesnt build pressure
& throw out the coolant at high temps but you still wouldnt want the engine to get to temps higher than its max running temp as the oil will get too hot & loose pressure,
They claim its in for life & good to -40 deg.
The only problem I can see with it you could get a false sense of security with it & allow the temp to get higher than normal & not worry but the engine oil temp will rise also & oil pressure will drop & possibly damage the engine.
Hoover. said:
Wow very interesting think Im just going to get sportmotive to fit new coolant mods like frank has on his LS3.This comment concerns me!!
It is flamable though, and very slippery if spilt (and it doesn't evaporate). So you do need to be careful with it and make sure your hoses etc are in good condition, as Evans coolant plus exhaust could lead to a fire.
As yet i have not fitted Evans however the more i look into it the more it makes sense.
Yes water is cheap and has done the job for years however so was coal and steam before the trains went to diesel.
However the claim of preventing overheating is a bit misleading as overheating comes from many problems ie pump failure blocked pipes or inlet or loss of fluid.
However as Evans boils at a far higher temp than water many of the problems associated with overheating are eliminated.
When an engine runs on water based coolant there is always pressure in the system and this pressure builds up even higher when running in hot conditions and also at altitude if going over mountain passes etc.
Evans will i believe not prevent this rise in temp however from what i can read will obviously prevent hose failures gasket failures etc caused by the pressure built up when a water filled engine gets hot.
Obviously you would still need to avoid running at high temp to avoid oil temp rising and problems associated with that.
My worry would be people adding Evans as a fix to cure problems that they may have of overheating as this does not seem to be a product that will fix that.
Rather a product that is added once the problem has been rectified and probably as a prevention to it happening again.
Regards the product being flammable i am told that a very high temp would be required far higher than achieved on a road car and most race engines.
In the unlikely event of a hose coming off which incidentally is usually due to pressure build up then you can always add water however you will need to drain and refill at a later date.
Once i have tried it i will update this later next year.
Yes water is cheap and has done the job for years however so was coal and steam before the trains went to diesel.
However the claim of preventing overheating is a bit misleading as overheating comes from many problems ie pump failure blocked pipes or inlet or loss of fluid.
However as Evans boils at a far higher temp than water many of the problems associated with overheating are eliminated.
When an engine runs on water based coolant there is always pressure in the system and this pressure builds up even higher when running in hot conditions and also at altitude if going over mountain passes etc.
Evans will i believe not prevent this rise in temp however from what i can read will obviously prevent hose failures gasket failures etc caused by the pressure built up when a water filled engine gets hot.
Obviously you would still need to avoid running at high temp to avoid oil temp rising and problems associated with that.
My worry would be people adding Evans as a fix to cure problems that they may have of overheating as this does not seem to be a product that will fix that.
Rather a product that is added once the problem has been rectified and probably as a prevention to it happening again.
Regards the product being flammable i am told that a very high temp would be required far higher than achieved on a road car and most race engines.
In the unlikely event of a hose coming off which incidentally is usually due to pressure build up then you can always add water however you will need to drain and refill at a later date.
Once i have tried it i will update this later next year.
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