Eric, have you tried swapping dipsticks with a known good one?  I imagine after 35 years, that rubber seal tends to under-perform.  Easy to try.

    On Tuesday, April 4, 2023 at 04:01:36 PM PDT, Eric Caron <ericcaron96@comcast.net> wrote:  
 
 I don’t think so, top of engine seems completely clean.  

This is a very tiny amount of oil that is dripping from somewhere.

Of course source could be different from where it drips down. 

And interesting how it is a sort of film over things in the very rear of the van.
Unfortunately skilled eyes and drivers are not hear often.

Eric 

> On Apr 3, 2023, at 3:40 PM, Dan N <dn92610@gmail.com> wrote:
> 
> Could it be from the breather tower? There's an O-ring seal on the bottom
> of it.
> 
> On Mon, Apr 3, 2023 at 7:06 AM Eric Caron <ericcaron96@comcast.net> wrote:
> 
>> Hi folks,
>> 
>>        My 85 2.3 seems to be spraying a very fine bit of oil.  I noticed
>> it when washing the van.
>> 
>> I found it on the rear hitch, mustache bar and the step that I have in the
>> rear hitch.  Some perhaps on under side of motor.
>> 
>> This is a fine layer but noticeable.
>> 
>> With a friend I had him look at the area and then went for a ride.
>> 
>> When we came back he checked to see where he might find oil.  It looked to
>> him to be the dip stick seal to motor.
>> 
>> I’ve never changed this before.
>> 
>> Can anyone talk me through the steps and also comment on if this seems
>> like a source of the oil mist at the rear of engine  toward bumper.
>> 
>> Appreciatively.
>> 
>> Eric Caron
>> 85 Westfalia
>>