Most of us seem to use one of:
Chevron Delo 400
Shell Rotella T
Pennzoil Longlife
All in 15W-40 weight.
There are others available, depending on where you live.  Your oil should be
rated CD or better.  Don't be tempted to use Mobil1.  The can says it is
diesel rated, but at least one listmember has lost an engine due to its
inadequacies in diesel applications.  Mobil makes Delvac1 synthetic
specifically for diesels, but I have never seen it for retail sale.

The dipstick problem is common.  There is no seal that will fix it.  There
are only 2 places for excess crankcase pressure to vent.  One is the
dipstick tube, the other is the breather on the valve cover.  You might try
removing the valve cover and using about a whole spray can of solvent (I use
brake cleaner) throught the breather.  If this solves the problem, you're
all set.  If not, it's time for a compression check.  There will always be a
little bit of ring blow-by that causes crankcase pressure, especially at
idle.  Excessive blow-by indicates worn piston rings.

Mike Snow

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM]On Behalf
Of Sharon Simpson
Sent: Sunday, April 08, 2001 6:02 PM
To: vanagon@GERRY.VANAGON.COM
Subject: oil for turbo diesel

Can anyone tell me what kind of oil to use for my 1982 turbo diesel? I
have no clue.

Also does anyone have the dipstick and oil filler cap. My dispstick goes
in  a holde in the middle of the oil filler cap. There must be a seal
that I am missing because  oil comes back out of the hole in the filler
cap. And it comes out at a pretty good rate.
Or can I but this setup new somewhere

Sharon