coolant mix

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Oct 9, 2003 | 12:13 PM

IANOC

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coolant mix

hey gang
just refilled my coolant in my *** rex
with a 50/50 mix
i used evian natural mineral water .is it true this is bad for the wrx as it can corrode easier
should i be using tap or distilled water
can i do damage using the mineral water
thanx

Oct 9, 2003 | 12:55 PM

4080wrx

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Posts: 6,196

From: Rockin my 6th Suby in the 808 in the past decade!

Car Info: 01 Impreza RSTi, 08 Evo MR, and 13 XV

use distilled water

Oct 9, 2003 | 02:04 PM

Mulder

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Joined: Nov 2002

Posts: 1,646

From: NYC

Car Info: 02 WRX WRB

Minerals may be good for you but they're not good for your cooling system. May be no harm done depending on what is actually in that water and how much, but the best thing is to use distilled water as specified. If you want to be certain this won't cause any problems then drain it and refill it again with the right stuff.

Oct 9, 2003 | 03:37 PM

02wrbluewrx

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Joined: Jun 2003

Posts: 120

From: Ann Arbor/West Bloomfield, MI

Car Info: 2002 WR Blue WRX

maybe im just ignorant but whats the reason for mixing water and coolant and not just putting in straight coolant

Oct 9, 2003 | 03:51 PM

Mulder

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Joined: Nov 2002

Posts: 1,646

From: NYC

Car Info: 02 WRX WRB

Water is actually more efficient for heat transfer than antifreeze. A system filled with pure antifreeze wouldn't cool very well. The antifreeze is necessary to lower the freezing point and raise the boiling point of the coolant, as well as for the anticorrosion additives, but for proper cooling system operation you don't want to go over a 50-50 mix.

Oct 9, 2003 | 06:39 PM

IANOC

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Posts: n/a

**** it took me ages to do it and get rid of airlocks
well ill have to do it again
what to look for with distilled water??
and any tips what coolant to use (specs)
thanx