Studer Technical Protocol 174 (please see the 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.
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