If you are having oil
>viscosity problems (too thick) I would consider oil analysis.  It is more
>likely to be soot than sludge.  If so, you need some engine service SOON.
>Excessive soot in the oil will KILL the engine.  Check the archives on this
>one.  Someone blew a low mileage diesel from excessive soot in the oil.

        That would The Westyman, aka big Karl Mullendore.  He knows about
synthetic oil and diesels.  I think he runs dino now exclusively since the
disaster of the last year.

HK