I have used Eucalyptus Oil for 20 years. It really cleans off grease and grime and not the playfield. .. I use it to clean metal parts too, as I hate the smell of turps and the like. .. It's also good for wiping the wiring too...also the underside of playfield plastics (on a cotton bud). ...Mark

+1

Totally agree Mark and also with the cleaning of metal parts with eucalyptus oil. I have found the 'purple' side of the ME after they have been used a few times to be excellent to clean metal and also things like coil plungers with eucalyptus oil