oil transmission cooler line for coolant?

[Mark R]

If the line is pressure rated (which I'd expect a reinforced line to be), I
see no problem.  Oils are "harder" on rubber-based lines than coolant, so
chemically you'd be safe.  The only concern I'd have is the proximity to the
exhaust manifold and turbo itself.  A foil shield (like on a 1.8T turbo
lines) would be a safe addition.  External heat (or from the metal
connection at the turbo) would be my primary concern when replacing a
metallic line.

Mark Rosenkrantz


On 6/22/06, Brett Dikeman <brett at cloud9.net> wrote:
>
> Is there any particular reason I can't use reinforced oil
> transmission cooler line to replace the short section of hose that
> joins the metal pipes for the turbo coolant line?
>
> It is thinner than the old line, same ID, but reinforced...so I'm not
> too worried about pressure.  Temperature shouldn't be a problem, as I
> would imagine transmission oil could hit temps equal or higher than
> coolant.
>
> I'm more concerned about long term chemical incompatibilities.  I run
> Pentosin blue, if it matters (phosphate/silicate/nitrate free.)
>
> Brett
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