My CoreXY style printer doesn't have perfect belt alignment with its pullies, so there is some occasional squeaking on at least one pulley where the belt rubs against a flange. Since I don't have an easy way of adjusting the pulleys (maybe some tiny shim washers) I was hoping to just apply some oil to minimize the wear.
Could I just throw some 3-in-1 oil on the belt? Is there a better lubricant to use? I doubt that the belt would start skipping, but I am worried about damaging the belt due to some chemical incompatibility with the oil.
The belt is the most generic GT2-style timing belt you would find on a 3D printer, probably the same as this HICTOP 3D Printer Belt.