Answer
Apr 11, 2024 - 06:50 AM
The oil in a Yanmar diesel engine should generally be changed every 100 to 150 hours of operation, but this can vary based on the model and operating conditions.
For any more details, consult this Yanmar 3JH5E / 4JH5E / 4JH4-TE / 4JH4-HTE Marine Engine OEM Service & Repair Manual for the manufacturer's recommendations.
