stevemoir

iTrader: (24)

hey folks,

going to be getting a coolant change in march. ive been reading that the shell coolant seems more than capable for the job

does anyone know how many litres i would need ? also does this contain anti freeze aswell or would i have to purchase this separetely?

thanks

steve

poolio74

Coolant is antifreeze mate

stevemoir

iTrader: (24)

Haha oops my bad I'll stick to just the shell then

Steve

BBB3

iTrader: (7)

Hi Steve, I put the Motul antifreeze already to put in with no water in my car a few months back , think I have a quarter left in the bottle.

stevemoir

iTrader: (24)

Was that for a full flush?

Been reading that it requires 7 litres for a full flush

Steve

SEDITION

iTrader: (1)

7 litres is correct for a hatch WRX. Changing anti-freeze myself, I can never get more than 4.5 litres in, in any one go, without the use of a "flushing" machine.

scoobyricht

iTrader: (4)

take care refilling, air locks are easy on these engines and almost impossible to remove with out draining and refilling. guides on here if u search.

BBB3

iTrader: (7)

Yes was all flushed out, when I had cambelt done

AS Performance

iTrader: (4)

just like the word "hoover" - Coolant covers a multitude of sins................

most cost effective is to simply use a mix of concentrated Anti-freeze and water to the required strength

alternative is to buy factory distilled 'coolant' which is added neat to the system with NO additional water required

we carry both options in stock and can happily advise on required mix, etc.

generally speaking just over 7ltrs will be required

alcazar

iTrader: (2)

Can only repeat the usual warnings:
Don't mix types, and DO refill according to the "how-to's" on here...or risk an airlock.

nikra

just wondered if anyone can help. ive got a subaru impreza wrx classic and its loosing water out of the header tank... drastically...

kevo10

Sounds like your head gasket gone. but get a sniff test done to confirm,

kevo10

Ive always thought that water is the coolantand the anti freeze is just that . anti freeze. Otherwise, shouldnt anti freeze be sold as coolant ?

alcazar

iTrader: (2)

No, the coolant is water. We mix anti-freeze with it to...stop it freezing

Usual mix is 50/50

Pure anti-freeze wouldn't work as well.

kevo10

yes just what i thought

Maz

iTrader: (34)

Modern anti freeze doesn't just guard against freezing. It acts as a summer coolant and prevents corrosion.

kevo10

im aware of that thanks. The point i was making was that the op asked about antifreeze and coolant and the reply was that antifreeze is the coolant . Water is the primary coolanr and anti freeze is anti freeze and ,as you said,summer coolant

alcazar

iTrader: (2)

Anti-freeze is to stop it freezing, that's it's primary role.
Yes, it also contains stuff to inhibit corrosion.

Pure ethylene glycol, however, has a specific heat capacity about half that of water.

Even a 50/50 mix is only around the 3600 J/Kg/deg C, compared to pure water at 4200.

AS Performance

iTrader: (4)

which is why IMO most people are running far too much "anti-freeze" to the detriment of their cars COOLING..............

alcazar

iTrader: (2)

In this country, we'd easily USUALLY get away with a 25% solution.

But most folk play safe and go for the "down to -20 deg C" bit, which is 50%.

AS Performance

iTrader: (4)

but thats my point its not a general 50% mix............different supliers use differing concentrates so you MUST check the bottle
as an example Millers is 33%...........

alcazar

iTrader: (2)

Ah, I see.

I've never come across one that mentions anything but 50% for winter....but I don't have that much experience, admittedly.

SEDITION

iTrader: (1)

Especially relevant in places where there is no way of "getting away with sloppy mixing", like over here where it could drop to -20C very quickly (-50C up North ). Two different anti-freeze brands I looked at each had different concentration recommendations according to the external temperatures likely to be encountered.