Flushing the Cooling System was: (no subject)

[bencoates@yahoo.com (Matt Coates)]

Lubromoly Radiator flush.  I just did this on my car with awesome results. 
After adding the flush I drove it for a day, drained the coolant and did the
drain/fill/run thing with distilled water 4-5 times to remove as much of the
green stuff as possible.  

Final fill with G11 and water wetter and the temp is much more consistant.  The
fan comes on only when sitting in traffic for a while.  Also the coolant light
does not flash after 5-10 miles like it used to.  What I found is the old
coolant foamed up so badly it would eventually trip the coolant level sensor. 
Fairly inexpensive for *much* improved cooling... under $40 for everything with
shipping.

HTH,
Matt
'87 16v

--- T Berk <tberk@mindspring.com> wrote:
> Isidro Lepez wrote:
> > 
> > Hey there folks.
> > 
> > Well the weather here in spokane is finally becoming
> > decently mild, and as a result the Rocco has had a
> > chance to show me that it needs some work.  The temp
> > on the rocco is a bit high when idling and i was
> > hoping i could get some of your opinions on what i
> > could use to flush the whole cooling system.
> > 
> > I heard Phosphoric acid works well on disloving crap
> > in the sytem.  Can anyone back this up, or give me an alternative?
> > 
> 
> 
> Do not do this, it will weaken the metal in the coolant system.  Better
> than acid would be a soap type product, something meant for this
> operation.
> 
> There is a Purple Power product a fellow lister will help me identify (I
> hope).
> 
> How high is high anyway? Maybe it's OK after all. Might just be a slow
> thermostat that fails to open very much. Look to get a replacement if
> you are going to flush the thing, don't slip by with one of those cheap
> Kragen models either. 
> 
> <http://www.parts4vws.com>  OR
> <http://www.germanautoparts.com> 
> 
> can hook you up.
> 
> hth,
> TBerk
> 
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