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Old 02-12-2013, 10:08 AM   #23
City: Montgomery, TX
Country: USA
Vessel Name: LITA
Vessel Model: Whitby 42
Join Date: Feb 2012
Posts: 797
The manufacturer specifies engine oil. The question was, there is a reference from the PO that he used synthetic oil in the transmission. If he did, I would continue using synthetic, otherwise I would use the same oil that I use for the engine, Rotella 15W-40. Is there a simple way to determine if the transmissions contain synthetic or real oil?

Since it is virtually impossible to drain all the oil, I don't want to end up mixing synthetic and real oil.

BobH is offline   Reply With Quote