Idle or kill motor when under sail?
So I was told that I should keep the motor idling in neutral when under sail. The reason given to me is that keeping the motor running will prolong its life. However, this is a little counter-intuitive to me, as the more hours you put on a motor, the less life it has left.
Sure, having the engine power is nice when raising and lowering the main, at the start and end of a cruise. But do you really need to keep the motor idling all the time when you're out sailing for 5 or 6 hours at a time?