On Sun, 18 Apr 2004, George Goff wrote:

> I want to clean some baked-on motor oil which is on a nickel plated bike
> frame.  The oil drip (English parallel twin, of course) was in a spot where the
> exhaust header is routed tight to the frame and so the oil has been well
> roasted.  I hesitate to use a scouring cleanser or oven cleaner for fear of damaging
> the nickel.  Does anyone have any suggestions?

I assume you've already tried "Gunk" engine degreaser.  It worked great on
my diesel, but none of that oil was "cooked on".

If you can rent a high-pressure steam cleaner, that may do the trick.
They're often used for degreasing stuff in industrial settings.  (Note I
don't mean a pressure washer -- different tool entirely, though there
are some similarities.)

David Brodbeck, N8SRE
'82 Volkswagen Diesel Westfalia
'86 Volvo 240DL wagon