Apparently had something wrong with air filtration in a really dusty environment and scored the cylinders somewhat. It doesn't seem to be losing power yet, just blows white smoke. I was just reading the FAQ and thought I would double check, "Can RESTORE be used in diesel engines? Yes, RESTORE is...
Was thinking about trying some RESTORE oil additive in a S250 in an attempt to get a little bit extra life out of the motor before a rebuild. I am 99% sure it has a common rail fuel injection system (RESTORE doesn't work with HEUI), but I thought I would double check.