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Original post by: Jerry ,


I have looked at your sample #2 I would suggest that you drain a few gallons I also change my big oil filters of oil to refresh and bring your base up but really its a good sample the high nitration is not a problem because none of the other things are high.  Soot is ok, TBN is getting lower so to refresh is good this is also called "sweeten the sump". Also make sure your air filter is filtering properly. jerry