UOA results @ 342k
Comment — “Thanks for the note about the air intake. We did find a little extra silicon, which could be dirt that made its way past the intake. The good news is that wear still looks great, so not enough dirt got through to hurt anything. Of course, if any sealants were used to replace the glow plugs, that could explain silicon as well. Lead improved a little. This level is still higher than average, but not enough bearing wear to be cautionary. No fuel or coolant found. The TBN was strong at 8.2 showing lots of active additive left. Try 7,500 miles on the next oil. Looking good.”
