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I have a 1995 Four Winns with a Volvo Penta SX Cobra outdrive (light gray colour) plate on side of outdrive says product number 3868156 type (left blank) gear ratio1.66 I believe it is a cone clutch.
I always used OMC Ultra HPF gearcase lube PN508318, yellow oil, but got discontinued. I now have been using Bombardier Evinrude/Johnson Ultra HPF gearcase lube PN 775601. But it seems this is not around now either, or I just have not found some. I was told Evinrude/Johnson Ultra HPF Pro is different?
Is Mobil 1 GL 5 standards, 75w90 okay for this drive?
The dip stick is about 6 inches long and has a flat portion on it. I assume that oil level anywhere on the flat portion is full. When I fill it from the bottom plug until oil runs out the oil level hole (outdrive is level using a level on the fins & I let it sit about 15 minutes) The oil comes about 1/2 to 3/4 of the flat spot on the dip stick. I assume it does not have to come to the top where the round and flat parts meet
Thanks for the help
ron3033




I always used OMC Ultra HPF gearcase lube PN508318, yellow oil, but got discontinued. I now have been using Bombardier Evinrude/Johnson Ultra HPF gearcase lube PN 775601. But it seems this is not around now either, or I just have not found some. I was told Evinrude/Johnson Ultra HPF Pro is different?
Is Mobil 1 GL 5 standards, 75w90 okay for this drive?
The dip stick is about 6 inches long and has a flat portion on it. I assume that oil level anywhere on the flat portion is full. When I fill it from the bottom plug until oil runs out the oil level hole (outdrive is level using a level on the fins & I let it sit about 15 minutes) The oil comes about 1/2 to 3/4 of the flat spot on the dip stick. I assume it does not have to come to the top where the round and flat parts meet
Thanks for the help
ron3033