as I said, i don't want to argue, just stating the facts so you know.

solutions of lye/draino,/NaOH  will attack aluminium. its just a
fact. if you are comfortable with that then ok.

alistair

On 15-May-10, at 10:06 AM, VWBrain@aol.com wrote:

In a message dated 5/15/2010 12:59:26 P.M. Eastern Daylight Time,
albell@SHAW.CA writes:
i'd really, really caution you in the use of lye with aluminium
radiators.
well heck most heater cores are aluminum and plastic,  just like most
of the new radiators.  all I know is Radiator flush didn't work and
the draino did.   Use with caution and make no gaurantees, if it
works great if not then you are doing the job anyway,   All I know is
that I have a bunch of customers that I saved a lot of money for.
later  mark d.