Hello folks,

Very odd, the oil pressure light comes on after about 7 minutes of driving.
1989, 2.1 WBX.  It happens every time.  If I let it sit, and get half-way
cool, then it takes about 2-3 minutes for the pressure light/buzzer to come
on.  I think the timing is associated with the oil warming up.  This has
never happened before.  I recently did an oil change, so maybe...  And I
have been doing some studying in the archives.  So, I had bought one of
those package deals at Autozone, you know for about $0.43 you get 5 quarts
of oil and a filter.

So, first, I took some oil out, it was near the high mark (in the past I
have suffered the oil pressure light on long uphills, so I am familiar with
this problem).  The oil level is now close to the minimum mark.  Problem
remained.

So it was a Bosch filter, and in the archives this oil filter is
questionable.  So today I replaced it with a Napa Gold, which is really a
Wix, which was recommended, and the problem remains.

The oil is still golden in color and clear,no sign of chocolate mousse or
contamination.

When I go downhill, at idle in neutral, the light/buzzer go out after about
7-10 seconds.

The next step I am considering is to get some different oil.  I know I am
being a bad vanagon owner, but I can't even recall what oil or weight I
used, pretty sure it was 40W or close to that.  Probably Castrol or
Pennzoil, just can't recall.  So I am thinking of putting some 20W-50 in.
Am in San Diego, really never drive it below 40 degrees, but this is not a
high temp / high stress problem, we are in the 50s-60s each day.

I think I have a "frothing oil" problem of some type.  Another post said
that "Castrol GTX 20w-50 is only $13 for 5 quarts at Wally World", maybe not
anymore, but I haven't been there is a while.

Any comments?  Thank you!

Roland