A refresher: This is the 1.9 TD that I installed in my Syncro Westy this
winter, that made the trip cross-country east to west, 7000 miles, only to
die the day after I returned home to Maryland. I sent a test-sample of the
oil off to the Mobil oil test lab, and the results are here! (I used Mobil
1, 15W50 grade oil)

The report says: " Severe level of fuel soot detected. Soot implies poor
combustion, improper air / fuel mix, compression. Viscosity high. Bearing /
bushing wear indicated."

In the 'physical data' section, the viscosity of the oil at 100 degrees C is
63.1(!!), water by volume less than .05%, fuel less than 1% by volume, and
soot an incredible 12.1% by volume! (iron and other metals were at an
acceptable level, so it wasn't self destructing during the trip)

So, cause of death was not overheating of the oil as I initially suspected,
but soot contamination. I suspect that there was a problem with the pump and
/ or the injectors, as the exhaust had several episodes of belching lots of
black smoke (soot). .....this would also explain the poor fuel mileage.  A
lesson learned, in the realm of diesels.

Karl
'87 Westy Syncro TD