This is on my Kubota z723 zeroturn mower with a Kohler CV682 22.5hp engine. The oil has 58 hours of use, and unused Rotella T5 10w-30 synthetic blend oil. The engine has 153 hours total on it. I am new here to BTOG, and not as educated probably about oil as many on the forum. Blackstone stayed that chrome was a bit high and “....maybe....just maybe this is from break in.” SEE NOTES on oil report. This engine had a warranty issue that I did not tell Blackstone about and it makes me wonder if it is perhaps a cause of the high chrome number. The mower would smoke at times for no reason (basically a new mower). Long story short.... April of this year it went in to have a head gasket replaced under warranty as on cylinder had a leak. The shop could not explain why a mower (at 73 hours at the time) had a head gasket leak, suggested perhaps it was a factory defect. Anyway they replaced reed valves and head gaskets, topped it all off with fresh oil (don’t know what they used). And have it back to me. After running the mower for about an hour, I changed the oil again to the Rotella T5 10w-30 (filter also). Does anyone have anything additional to add about the chrome?