Plus the fluid will boil at a higher temp under pressure.
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Plus the fluid will boil at a higher temp under pressure.
Ok, so just finished the conversion to Evans Waterless Coolant.
I bought 4 x 3.77ltr bottles of coolant and 2 x bottles of pre-treatment fluid.
$460.00 all up.
I drained all the existing coolant out and then hooked up a spit water vaccum cleaner to suck any remaining fluid out.
I added the pre-treatment fluid which feels like brake fluid to touch as it also is hydroscopic. Ran the engine for a few minutes then drained and sucked the pre-treatment fluid out. You can re-use this fluid so I strained it back into its original bottles filtering through a rag.
Filled the system with the Evans coolant, bled the air from the system and then took the landy for a spin. On return I tried the expansion tank cap and true to it's word there is very little preasure in the system.
One thing I have noticed that in the past the top radiator hose has expanded quite dramatically with normal coolant, well not the case now. It's still hot but does not expand.
By no means is this a silver bullet for a crook cooling system, but in my opinion may lead to longer service life due to a huge decrease in system pressure. Time will tell.
Kind Regards
Will be watching for updates! Good work mate!
will be watching for updates to, please keep us posted how you go
Time for an update.....
Very, Very impressed with this Evans Coolant.
I have taken to carrying a spare bottle in the boot "just in case".
That would be the only downside.
I preformed a pump flow test and cavitation test just to see how this fluid preforms compared to traditional coolants.
Needless to say it preformed better than expected.
The entire system has no leaks whatsoever and you don't have to do up the hose clamps anywhere near as tight as usual. For a 13 year old Landrover that is unheard of in my opinion.
I am now considering adding this to our motorbikes.
Kind Regards
Sounds good, be interested in a follow up after running in hotter months after 4wding!
Martin
any one got some actual stats on this waterless stuff?
Btw, the glycol in Evans IS toxic... Flammable and slippery...
It's banned at Tracks because of these last 2 traits...
It's cooking capability is less than that of conventional water based coolants as well and will show increased temperatures in the head during operation.
Going back to ideal gas laws, it's impossible for it to not increase pressure.
The system is a fixed volume so as temp increases pressure must also increase.
For it to eliminate pressure the system must either alter volume, which could only happen by bleeding pressure OR eliminate temperature fluctuation. Impossible in the application.