Those frames are anodized. You can clean residue that's one the surface, 
but beyond that you would have to strip the anodizing.To clean it,  I 
would start with a mild cleaner or even Simple Green and work up from 
there.
jay fishbein
wallingford, ct <http://home.ix.netcom.com/%7Etype79/>
http://home.ix.netcom.com/~type79/ 
<http://home.ix.netcom.com/%7Etype79/>   Now, New and Improved
"When governments fear the people, there is liberty. When the people 
fear the government, there is tyranny."
Thomas "Buckwheat" Jefferson
Jim Johnson wrote:
> Spridgeteers,
>
> Yesterday I had some time and did a bunch of niggling little things on
> the Midget - stopping rattles, adjusting things...etc.  I am now at
> the point where I can change out the windscreen with the spare that I
> have that is not cracked.  I want to clean up the frame but am not
> sure what to use on it. Can anyone recommend something that will get
> rid of the tranish without making a mess or doing damage to the metal?
>
> Cheers!!
> Jim - 68 Midget in Dodge City
 
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