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mudinuri

Active Member
I was watching an old Wheeler Dealer last night and Ed China was replacing water with Waterless Coolant in an old Triumph TR6. This sounds brilliant because it doesn"t freeze above -40 so no need to use antifreeze. I didn"t realise that the cooling system should be flushed out every so often because Anti Freeze only works for a limited period of time!!!
Has anyone tried using this stuff in their LANDY?
 
I watched that 2,been looking at prices for the coolant approx£ 60 for 5 litres,but supposed to never need to replace it,never used tho,
Watching with interest,
 
Antifreeze will last a long time unless it’s diluted because of a leak, But the corrosion inhibitors are the main problem
As after a couple of years there depletion will start to cause corrosion, especially on engine’s with Dissimilar metals
Aluminium head/ iron block,
 
A few years back my small aircraft engine manufacturer (Rotax) recommended Evan waterless coolant
But found because the boiling point was much higher it caused hot spots in the cylinder heads that could cause
Pre detonation and piston damaged, they then recommended a change back to 50%/50% Ethylene glycol,
If you use quality long life antifreeze it good for five years and a couple of changes will be way cheaper than the Evans waterless coolant,
 
Europa486 said:
Antifreeze will last a long time unless it’s diluted because of a leak, But the corrosion inhibitors are the main problem
As after a couple of years there depletion will start to cause corrosion, especially on engine’s with Dissimilar metals
Aluminium head/ iron block,
Click to expand...
Are you saying that by me topping up my coolant with a liter of water every couple of weeks my antifreeze will be diluted? :oops:

Maybe I should sponge it up out of the passenger footwell and squeeze it back into the expansion tank rather than using fresh water.

In winter I alternate top ups between fresh water and antifreeze.
 
GrumpyGel said:
Are you saying that by me topping up my coolant with a liter of water every couple of weeks my antifreeze will be diluted? :oops:

Maybe I should sponge it up out of the passenger footwell and squeeze it back into the expansion tank rather than using fresh water.

In winter I alternate top ups between fresh water and antifreeze.
Click to expand...
I have a container of 50/50 coolant in the garage for top ups. It's hard to judge the dilution rate in your system when you alternate between water and antifreeze unless you are measuring everything you put in. One of the good things about a leaky system is that you don't have to change the coolant.

Col
 
Waterless coolants don't have the same heat carrying properties of regular OAT coolant, so are as effective at cooling the engine.
I can't see the point in it really, especially as modern OAT coolant only needs changing every 10 years or so.
 
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I always ran the race mini on pure water with no issues - was out of the car and stripped over winter. I tried some waterless coolant (got my hands on Renault stuff) and she cooked every race.
There was a recent discussion on an audi forum about the VAG coolant Gx.
G11 was out in the 80s its now at G13. G12++/G13 are long life but brass and/or lead solder in cooling systems don't get on too well with G13 although it's great for alloy rads.
 
i read somewhere that the system wont pressurise anywhere near as much using waterless coolant, assume this is to do with vapour pressure and the boiling point.
if the heat absorption rate/capacity is lower then i would expect you'd need a thermostat with a lower opening temperature, but what impact would this have on fool injection?
 
remember as well, you can't just drain and refill, the engine needs to be pretty much dry before you swap to waterless, even then its hygroscopic, as is brake fluid
 
Wow, there are some different ideas on this subject. Think I might just stick with the old Anti Freeze method on my MK1 Freelander. Just one other thing won"t having a can of 50/50 like ColtheBrummie has already mixed in the garage deterioate?
 
mudinuri said:
Just one other thing won"t having a can of 50/50 like ColtheBrummie has already mixed in the garage deterioate?
Click to expand...

No. It'll remain fresh until its put in the engine, after which the countdown can start. ;)

There's no need for a 50% concentration though, as long is its between 33% and 50%. I used a 40% concentration myself, which will allow for an emergency water only top up.
Going over a 50% concentration effects the efficiency of the coolant, so must be avoided.

Once the correct concentration of long life OAT is in the system, it's good for 10 years.
 
+1 on save your money and stick with 50/50 anti-freeze & water.

How many other cars did Ed-C actually promote this on after the advertising payments stopped ?? Not many !!
 
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