Most shredding machines need to be oiled to ensure they function properly. The finer the shred the paper shredder makes the more oil it will need. Small particle cut shredders and high security specification machines require regular oiling and some Dahle machines come complete with an automatic oiling system.
Shredder oil is the only lubricant which should be used on your shredder. Shredder oil is specially formulated to leave no residue on the cutters. Other oils will attract paper dust and in turn clog the cutting head. Dahle oil is specified specifically for Dahle machines and has been subjected to extensive testing.