I get too many opinions as too the viscosity of the oil to be used in the gear case, should it be <br />a) Sae 75 or Type C<br />b) Sae 90 <br />c) OMC gear case oil.<br /><br /> I having been using Type C for all these years with no problems. I told the boys that I'll go to the gurus for the answer. Any help in this matter would greatly be appreciated - thanks and bye for now - David
