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Waterless coolant fluids !!

2977 Views 10 Replies 7 Participants Last post by  Alistair Muir
Never heard of such a thing till now. Interesting stuff.

Evans Waterless Engine Coolants | Vintage Cool 180° | Classic Cool 180° | Prep Fluid | Power Cool 180° | Aero Cool 180° | Aero Prep Fluid

Anyone using this sort of thing in there alfas ??

If it lasts the life of the engine as stated in fact sheet, we'd all be using it. But I'd think no one will stock it if we never go back to buy more....
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I was talking to an engine builder yesterday who told me that Toyota were using this in the 1980s and, as a result, he could always depend on the inside of their engines to be pristine. Might be worth researching? I use two cans of the Honda pre-mixed coolant in my engine, which also cuts down electrolysis.
Ciao Alistar,

Please note that I'm using Evans waterless coolant in my engine and it work great. Along with the benefits of a higher boiling point it also has non-corrosive elements which is vital for our ageing Alfa engines. Also note that you don't need an overflow tank! Following a long day at the track recently my coolant level remained exactly the same.

I'm using the high performance version in my newly built engine, but if your changing over from normal coolant/water you need to also purchase a flushing agent prior to using Evans waterless coolant.

Note that it's not cheap, but in my opinion it's well worth the expense.



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Does it also provide antifreeze properties to minus 40?
From Evans FAQ section!

Q. Do I have to add antifreeze to the Evans Waterless Coolant?
A. No, Evans Waterless Coolant has an antifreeze protection built in to protect to -40°C.
Definitely like the fact it won't expand as much under heat stressing rubber hoses and head gasket seal. I'd imagine if it's not under pressure like water based it will not take as much power from water pump.. That said.... How thick is it though compared to water ??
I'll stick with good quality antifreeze, distilled water and routine maintenance thank you.
A buddy of mine builds engines for endurance racing, I asked him about Evans. He said "check the thermal characteristics of Evans vs. water...stick with water."

I think its an interesting product. If you don't have to worry about removing significant heat from the engine, it might be something to do.
Found this independent test sheet. Searching under evans coolant problems.

I'd read this thoroughly if considering swapping to it.. But yes they are the competition !!

Each Evans product is 100% glycol. Some are 100% propylene glycol, and others are a mix of propylene glycol and ethylene glycol.

I don't think I would ever change... too expensive, It's flammable. Engine temperatures are actually increased using it, thinning oil... 20-25% increase in viscosity that water pumps not designed for..some change the pulley ratio to increase volume pumped. so will rob power from car..

That said there is a lot of people who never have a problem using it. Make sure you have hardened valve seats to stop hotter running wearing them out faster...

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Yeah, that's a very good write up of why this stuff is not a good idea: I'm glad someone finally did some detailed testing. I mean *admittedly* it's someone trying to sell their own different product, but the high cylinder head temperature results jive with what I'd expect from running pure glycol.

The Evans stuff is not exactly rocket science: it's basically just a mix of propylene & ethylene glycol with no water (normal coolant is 50/50 glycol/water). If running straight coolant were actually a good idea, carmakers would have been doing this for years. They don't because it's just too viscous and has poor heat transfer characteristics.
Jay Leno and Evans Guy ..

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