Studer Technical Protocal 174 (see downloads section to obtain a copy) lists Isoflex PDP 65 oil as suitable for lubrication of the motors on their products made prior to 1987.
Isoflex PDP 65 Lubrication Oil (10ml)
In the unlikely event of a defect with this product please return it to us for either exchange or refund. The choice is yours.
Sent by 1st class small packet delivery in the UK (£1.50). Delivery outside the UK is subject to additional charge. Please enquire at order.