I have seen the following recommended as a slideway oil concoction;
1 part STP or Wynn`s oil treatment (its very sticky to stay put.)
1 part Molybdenum DiSulphide, a graphite oil, tradename, Molyslip.This was recommended to fill any minute spaces with balls of graphite to lubricate.
20 (?) parts EP90, Extreme Pressure oil
Shake vigourously every time b4 use.
I use it on Myford bed and graphite grease on leadscrews, Lathe & Mill. I use Myfords oil for the bearings on MLS-7, Mill and Fobco Drill. I keep Myford oil in a Rheilang pump can for two reasons; it doesnt waste oil like other makes of pump cans so is economical with expensive oil and as it doesnt spill everywhere, I dont get oiled as well!
John