How often should oil samples be taken from a newly overhauled engine?

Taking oil samples from a newly overhauled engine is crucial for monitoring its performance and detecting potential issues early on. The correct approach is to sample the oil after specific intervals: after the initial 1 hour, then at 25 hours, and subsequently at 50 hours. This method allows for close monitoring during the critical break-in period when the engine components are settling and any wear debris or contaminants can be identified early. Regular sampling beyond 50 hours allows for ongoing assessment of the engine's condition and ensures that any developing issues can be addressed promptly, helping to maintain engine reliability and performance over time.