DUDE_SWEET_FRST

is it ok to do this? as in not putting in any water at all, just coolant?

on an rst engine

frog

I don't know, but why not mix it with water as recommended, it's not like water's expensive or in short supply

Blakeya

Nope! Never use 100% concentrated antifreeze. Always mix wth water in the ratio it tells you to on the bottle.

Antifreeze is Corrosive!!!! I am sure you can understand why it needs diluting now!!

Andy

jb fletch

iTrader: (1)

Plus Antifreeze isn't as effective as water at a heat conductor !

Jb

The DIVA

iTrader: (3)

Rubbish....

100% Antifreeze(Glycol) is not available anyway as it is lethal in that concentration...

The stuff you buy is already partially diluted and is fine for use as is....I have used undiluted coolant for 20 years with no problems whatsoever...

DUDE_SWEET_FRST

yeah, my mate also swears by not diluting the coolant you buy.....

just we had a conversation, where i said id dilute it, and he wouldnt...

just thought id see what others opinions are

rapidcossie

50, 50 mix is best

Mike Rainbird

iTrader: (3)

What he said.

Some of the racing coolants, you aren't even SUPPOSED to dilute....

As to it be a corrodant - absolute BOLLOCKS, it acts as corrosion INHIBITOR, as it is the water that corrodes and is why you musn't run 100% WATER .

Stavros

so why (unless its a racing one that your not ment to) WOULDNT you dilute it?

gurnE

Why not buy something designed to be used that way like Silkolene Pro-Cool instead?

gingeRS

i thought it can kill your water pump cos of the difference in viscosity?

i always run 50 50

ballin

iTrader: (1)

that would be my only reason not too, viscosity.

Mike Rainbird

iTrader: (3)

It depends on the percentage of Ethylene Glycol / water in the mix of the "Anti-freeze" to start with, so you would have to read the lable on the side of the tub before being able to answer that. There is an ideal mix for prevention against freezing - and surprisingly enough, if the content is TOO HIGH, it gives LESS protection (only down to -13°C at 99%).

Mike Rainbird

iTrader: (3)

Percentage of Glycol and it's Specific Gravity g/cm2
0 = 0.998
10 = 1.012
20 = 1.025
30 = 1.038
40 = 1.053
50 = 1.065
60 = 1.077
70 = 1.088
80 = 1.097
90 = 1.105

sas

I am a race and test team mecanic at McLaren F1 and we use straight water (with a dye added to spot leaks).

Water is the best conducter of heat for our application, but the longest that it stays in the engine is 2/3 days.

The DIVA

iTrader: (3)

Also.....Coolant is banned in racecars because it is extremely slippy and would endanger others racers if a car crashed and shed a load of coolant...

COMEDY DAN

Mike always has the facts ready so others can learn and stop spouting junk..

AlexF

what!!!!

and oil isnt

Mike Rainbird

iTrader: (3)

That is incorrect, water mixed with Glycol is much better at dissipating the heat .

You use pure water for the reason Nightdavva posted .

Pressure Boiling Point
psi / 33% / 55% of Glycol
0 / 104.5°C / 108.5°C
3.7 / 110.5°C / 114.0°C
7.4 / 116.5°C / 119.5°C
11.0 / 121.0°C / 125°C
14.7 / 125.0°C / 129°C
22.1 / 132.5°C / 136°C
26.4 / 139.0°C / 142.5°C
29.4 / 146.0°C / 150.5°C
44.1 / 149.5°C / 156.5°C

You can see what difference a higher mix has as well as why you run high pressure caps on Cossies when uprating the cooling as well... .

Mike Rainbird

iTrader: (3)

Alex you muppet, I don't think the cars would get very far if they banned oil as well .

Andreas

Then you have been wrong for 20 years.

Or is the UK glycol already diluted to 50/50?

Over here you can get both diluted (50/50) and undiluted glycol so that you can mix your own solution.

ballin

iTrader: (1)

thanks for that mr comedy

The DIVA

iTrader: (3)

Don`t think they trust us muppets with undiluted glycol Andreas....

James

I was under the impression that 100% anti-freeze would eat away and the gaskets, thefore needed 50% water to dilute the mix?

Butch.

iTrader: (1)

well well didnt think i would see u on here simon

COMEDY DAN

Thank you Mr ballin

COMEDY DAN

Welcome Mr S

foreigneRS

what have those figures got to do with it? how about posting the specific heat capacity at different mixtures?

James

Higher pressure rad caps? not heard that one before, surely your just gonna be at risk of blowing heater matrix's and water gaskets?

Mike Rainbird

iTrader: (3)

Sorry Nick,
I should have worded it better, the use of a higher mix of glycol raises the boiling point of the coolant. Which means it is more stable and less likely to vaporise, giving better cooling properties.


James,
All modern cooling systems are pressurised .

CossieRich

iTrader: (1)

So after all the figures have been told by Mike and a bloke called sas who works for Mclaren F1 posts, and Alex saying that oil should be banned because its slippery if it leaks onto a track ....

what is the outcome? Is it ok to run our precious cossie/rst engines on just 100% anti-freeze or does it need to be diluted

foreigneRS

why does raising the boiling point give better cooling properties of the fluid?

i don't know if it does or doesn't as i haven't seen the data.

what i do know, is that raising the boiling point gives you a more effective radiator for any given size as the temperature difference between the water inside and the air passing across it is greater.

and we all know that the cooling capacity of a heat exchanger is determined from the mass flow of the fluid through it multiplied by the temperature difference don't we?

but if all that you want to do is raise the boiling point of your coolant, chuck a load of salt in there

The DIVA

iTrader: (3)

Nick......You take the piss almost as much as Mike...

Franco

iTrader: (2)

EXACTLY!!!!!!!!!!!!!!!

So can we do this or what, poke the figures........The mobs just want to know!!!!

Saves fucking around measuring the stuff out again!!

The DIVA

iTrader: (3)

OK OK.............

The answer is yes you can run your precious cossies on 100% coolant(the stuff we buy is diluted anyway)..

I would recommend the ford stuff as it`s good quality and also it`s pink so Mike would like it for the Gayness value....

Franco

iTrader: (2)

See it takes a scouser like Rob to speak plain English!!

Ps did you get the PM?

The DIVA

iTrader: (3)

Certaintly did mate......

Bit of a difference in quality...

Looks like it`s all coming together now though....

Mike Rainbird

iTrader: (3)

As I have already said, you have to check on the side of the bottle to see by how much it is diluted by before this can be answered.

55% glycol to water is best compromise for cooling / freezing properties. But that is PURE Glycol / water mix.

That pink nats piss that Nightdavva is talking about, you could probably drink without any ill effects .

Sticky.

iTrader: (4)

AT FOOKIN LAST

My PM box is full as it is

The DIVA

iTrader: (3)

Think they serve something similar in most Scouser pubs....