Just Thinking....again
Just speculating here. I don't know the answer. No one seems to have disappearing oil problems with the old drives that had all the drive oil Captive in the drive. We just don't open the top plug every day to kook at the oil level. The drive is Sealed and as such is not open to the atmosphere. .
These days, the new drives have a remote reservoir that is above the drive and is open to atmosphere. Atmospheric (barametric) pressure changes from hour to hour, day to day. Temperature changes as well....particularly in the engine room.
Just suppose..during operation, the drive oil in the drive is aerated by the gears..causing the oil to expand in volume. It's not under any restraint by a closed/presurized environment so it "wells up" into the resevoir making the resevoir appear to be full. Once the oil cools down and the entrained air percipitates out..the oil level goes down.
So where is that one ounce a day of voluntarily ADDED oil going...? I'm still pondering that.
Maybe just don't look at the oil level every day. If you find the level down one day..Leave It Alone for a few days and see if the level continues to go down..or maybe returns to "Full" level.....for whatever reason.
OK: Time for an adult beverage.
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1986 Minx. SBC 350/260hp, Alpha I. Red, Honey.