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Evan's Waterless Coolant.


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Posted

The first production versions of the Rolls Royce Merlin used to run this sort of coolant:  it may not have the same capacity per degrees C to carry heat energy as water, but because it doesn't boil until 180 degrees C or whatever even when not pressurised it can hold more heat energy in total before boiling than water can.  This allowed the engine to be run at 160 degrees C or so and have both a smaller radiator and less coolant on board, both of these things, oddly enough, affect the performance of aircraft by being able to carry more fuel and bullets and to fly faster.

 

I wouldn't run it in a car, though.

  • Like 5
Posted

Possible earner alert: according to the excellent wayback machine link this shite is made from non-aqueous propylene glycol.

 

If you google for that shit you get this shit which is £15 for 5 litres. 

 

Evans coolingless coolant is about £15 a litre. 

 

Order up a big drum of this propylene glycol shite, add some jazzy coloured dye and stick it in bottles covered in lies, sell it for maybe £10 a litre?

 

PROFIT.

Posted

A few competition dirt bike guys used to run ATF in the cooling system as it wouldnt boil up when pulling hard at low speeds but it gave no warning signs that it was getting hot and bikes would seize up rather than burp the coolant out. 

Posted

Proper snake oil vendors they are... check out their pricing, the "powersports" stuff costs 20% more than the "high perfomance".

Then check the spec sheets one by one and you will see it's all absolutely identical.

 

Interesting read are the safety sheets.

A recent one tells us the formula:http://www.hrpworld.com/store/media/media/manufacturer/evans/pdfs/EVANS-NPG+C%20-%20Evans%20High%20Performance%20Waterless%20Engine%20Coolant%20-%20SDS.pdf

 

Ethylene glycol 80-85%
2-Ethylhexanoic acid  <1%
Sodium Nitrate <1%

 

that doesnt add up to 100%.

 

An old spec from 2004 tells us what makes up the difference: http://contrails.free.fr/temp/NPG+_MSDS.PDF

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The glycol content went up, but there is still 10% Water !! Surprising for a product advertised as "waterless coolant"

 

Obviously their speak about the need to flush out the system and get all the water out is only to sell you their expensive "prep fluid".

 

Final check, what is the "prep fluid" being made of? http://www.hrpworld.com/store/media/media/manufacturer/evans/pdfs/EVANS-PREP%20-%20Evans%20Prep%20Fluid%20-%20SDS.pdf

 

Ethylene glycol 90-95%
2-Ethylhexanoic acid  <1%
Sodium Nitrate <1%

 

same stuff with less water...

Posted

Amazon finds other water based liquids when  searching for "Evans"  :mrgreen:

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