UOA results @ 321k
Comments — “A little excess lead was the only item of note in the latest sample from your Power Stroke. We’ve certainly seen it read a lot worse than 8 ppm, so we do not think this shows a bearing problem but we’ll still keep a close eye on it for you next time. All other wear looks great, especially for an oil run almost 7,000 miles and that’s always nice to see. It looks like running this oil past the 5,000 mile mark didn’t hurt you a but and you could go even longer next time, assuming lead holds steady. The TBN was strong at 6.7, so lots of active additive was left.”
