2010 BMW X5 Xdrive35d twin turbo diesel.
All emissions equipment deleted, about 380hp and 550lb ft with tune. 210,000 on vehicle, 10,000 on Mobil Delvac 15w40 and a Hengst filter.
Driving was done over the past year in Las Vegas, a mix of city and highway. About a quart of make up oil was added over the interval.
I experimented with a couple different cone air filters during this interval and had the intake opened up multiple times, which could explain the silicon reading.
Also have had a consistent minor loss of coolant for the past 20kmi with no obvious external leak, which could explain the sodium.