[TheForge] Oil Finish

[Woolley]

Greetings,

I'm fabricating some tables with 5/8 square mild steel.  The millscale
is intact/untouched in the process.  The last ones I did had a used
motor oil then light paste wax finish.  Seems to darken the steel just
enough to give a pleasing look. (the client likes it)  I don't have the
time to experiment with every oil known to man, nor do I think it would
make any difference.  I don't want to use the used motor oil anymore. 
Does anyone have any favorite quick finishes that would have the same
effect?  I hope this isn't too tired a subject.  Thanks.

Regards,
Bill Woolley