The general rule of thumb is that the oil has reached the end of its' service life when TAN > TBN. Given that one criteria, I'd say the last three analyses show you have perhaps 1k-2k of life left in these samples.
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The general rule of thumb is that the oil has reached the end of its' service life when TAN > TBN. Given that one criteria, I'd say the last three analyses show you have perhaps 1k-2k of life left in these samples.
I have read your statement in regards to fuel dilution in that essentially once an equilibrium is reached the percentage dilution remains constant. So in my case, if I am at 1.7% fuel dilution, I could expect this to remain steady throughout the duration of the OCI. Correct?
If the above is correct, can I liberally apply your TAN > TBN rule of thumb, or should I take care because of the fuel dilution? Are soluble to be worried about?