I read elsewhere on your web site Evinrude E-TEC engines can run up to 50 hours without needing to add oil to the reservoir. How do you define that 50 hour run period?
This is based on ICOMIA studies which have found the average recreational user runs their engine 50 hours per year and, for each hour of run time, they run their engine: • 24 minutes @ idle • 15 minutes @ 40% throttle • 9 minutes @ 60% throttle • 8.5 minutes @ 80% throttle • 3.5 minutes @ full throttle Therefore, if you idle or troll more than this, you may use less oil, or, if you run full throttle more than this, you may use more oil.