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Read articles →An owner who ran two CT5555 tractors side-by-side, one with a 200-hour break-in oil change per the manual, one with an early 50-hour change, compares actual Blackstone Labs oil analysis results for both. The video walks through the specific wear-metal numbers (copper at 514 vs. 47, lead, tin, silicone) and draws a practical conclusion. Best for Bobcat CT5000-series owners wrestling with that exact break-in interval question.
Posted by the Gaining Ground channel; the presenter appears to be a private owner sharing hands-on data from his own machines, with no evident commercial affiliation.
Oil analysis showed much higher copper, lead, and tin at 200 hours than at 50 hours, so the owner concludes the 50-hour change is likely the better practice, though Blackstone was not overly concerned about either.
The 200-hour sample had copper at 514 versus a 7 average, 10 times average lead, and 37 times average tin. The 50-hour sample had copper at 47, about 7 times average, with lead and tin close to double average.
No, Blackstone Labs said the silicone is most likely harmless sealer and lube from assembly and should clear up after a few more oil changes.
