Gear Oil

[Air4Life]

The level on the transmission looks pretty darn close to the mark, then again, we are not talking any more than a tablespoon of oil or so, that is, after a 360 mile trip.  

I rode it to the car wash some 4 miles away and cleaned it pretty darn good.  I then road for another 6 miles -  all sub 45 mph.  So far the area looks clean.  This weekend I'll put another 160 mi. on it - at highway speeds that is.  That should squeeze the oil out of it.  

I change the oil so frequently, and this last time when I could not find the the Vavoline I normally use, I went with another class of Vavoline, one labeled "conventional".   I'm wondering if that could be pushing out the main.  I remember reading here that someone had went to synthetic and developed leaks, they then went back and it went away.  I didn't go synthetic, but possibly the oil is different enough...  

To be sure, I'll be reporting back.  Thanks again.

[Bob_Roller]

Changing the oil will not have any effect on the switch leaking .

Only a switch replacement will stop it, (for a while) .

[Bob_Roller]

If it's the engine, you've got two possibilities, the rear main seal on the engine, or the oil pump cover o-ring .

If you can get a paper towl on the end of long liers, or a spring loaded claw type pick up tool and see if it's gear oil, or engine oil .

[Semper Gumby]

80W90 is what I use in the winter Valvolene Semi Synthetic (dark blue Bottle).  I use the 85W140 stuff in the summer only in all three places.  

Sorry about the neutral switch.  Expensive Piece of crap from BMW.

In the motor I'm using Valvolene VR1 20W50 in the summer and 10W40 Valvolene Motorcycle Oil in the winter - no leaks.  It has a pretty high ZDDP content at a reasonable cost from Autozone.

[Air4Life]

It has been about 300 miles or so since I reported that leak, which appears to have stopped.   It's no longer showing the tiny puddling that I had prior to the engine oil change.   To strange...?