[s-cars] Gelling coolant

[Mark Pollan]

Best/required to let her cool down before you drain and refill no?

Mark

-----Original Message-----
From: s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com] On Behalf Of Gísli Óttarsson
Sent: Monday, April 16, 2007 7:13 PM
To: Tom Green
Cc: s-car-list at audifans.com
Subject: Re: [s-cars] Gelling coolant

This seems straightforward enough.  I'll probably have a go this week-end,
if weather permits.

Gisli

On 4/16/07, Tom Green <trgreen at comcast.net> wrote:
>
> I'll have to defer to Dave Dawson on the details, but, you have the
> right idea,
> and the Finish should be fine. This is dishwasher detergent, not the
> dishwashing
> detergent for hand-washing dishes.
>   I suggest about a half cup or two times the normal dishwasher
> amount.  Drain the
> coolant first and refill with water and add the Finish.
> You don't want to operate the car, just run the engine until it gets
> up to temperature,
> then about 15 to 20 minutes at idle to let the cleaners work in the
> system including
> the heater.  Then drain and refill with water, bring to temperature,
> drain and repeat
> until the coolant water is perfectly clear.  It may take several
> times to remove all the old
> coolant and the dishwasher detergent.   Even the low sudsing
> dishwasher detergent
> can foam some, so it is important to completely flush all traces from
> the cooling system
> or a slight amount of foam can cause an air block in the system and a
> localized over-
> heating can occur.  Who knows if it is compatible with coolant?
> I suspect those fleet maintenance guys have a power flushing machine
> to expedite
> this process.
> It is a good practice to use de-mineralized (soft) water for the make-
> up portion of the
> coolant.
>
>
>
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