As you may have read, I was a bit concerned about the last analysys on my Duramax in this thread:
https://www.bobistheoilguy.com/foru...000-miles-19-500-miles-total#Post5255959
I just got this sample back today. Nothing to see folks, move along Even with the Fe based fuel additive, the Fe number is good. We also found that the oxidation number of virgin Delvac 1 ESP is 33, so nothing to worry about there either.
https://www.bobistheoilguy.com/foru...000-miles-19-500-miles-total#Post5255959
I just got this sample back today. Nothing to see folks, move along Even with the Fe based fuel additive, the Fe number is good. We also found that the oxidation number of virgin Delvac 1 ESP is 33, so nothing to worry about there either.