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I think the question is 4 stroke versus DFI.

All 4 strokes are straightforward when it comes to oil change, filters, lower unit gear oil, lubrication.

DFI eliminates need for engine oil changes.

If i was back in the north and had my choice, it would be E-TEC for that and the self-winterization feature. You could go out on a nice day in February for a few hrs then re-winterize in 5 minutes and throw the tarp back on.