[Vwdiesel] 1991 Ecodiesel Questions

[LBaird119 at aol.com]

> My ECO ( now 205K miles ) runs COOL.....eighty mph on the interstate (
where
> I use it most ) and the needle is barely up from the cold/far left....it
will
>  move up to the middle in extended heavy traffic. Cooling system is in EC.
I'm
>  thinking of changeing the thermostat.Where's the best place to get one ?
> Other ideas ?

  Does sound like a bad thermostat.  There are many places to buy one but
generally your local auto parts store is NOT the place to do it.  The opening
is usually much smaller than the OEM stats.
>
>  Item two has been ocurring for some time -after several hours on the
>  interstate, I notice the dipstick has levitated an inch or so from the "
> fully
>  in " position. It doesn't seem to be loose/broken - not overfilled w/ oil.
>  Ideas ?

  Blowby could be excessive or the screen in the valve cover could be clogged
from incorrect oil buildup (coking).  It's possible the dipstick just isn't
fitting
snugly.  The red part it clips into tends to crack which will make for a
loose
fit.  Those are also available.
>
>  Oil viscosity - I'm using 20W 50 Castrol, always have. Would 30 weight be
>  better in this weather ( approx. 35-60 degrees ) ? Any suggestions ?
Thanks !
>
  Is that a diesel rated oil?  Most Castrol products aren't.  I've always run
15W/40 year round with no problems.  Synthetic isn't a bad thing and
several people run it.  I just haven't gotten around to trying it yet.  Just
be
SURE you have a "C" rating on the oil you use.  The higher the second
letter in the "C" designation, the better.
     Loren