GManBart
Elite Member
- Joined
- Dec 10, 2012
- Messages
- 4,976
- Location
- Detroit, Michigan
- Tractor
- Massey Ferguson 241, Kubota SVL90-2
The only time I shut down my diesels is when I know the idling period will be more than maybe 20 minutes. I definitely don't shut down if it's only going to be 5-10min between tasks, and I really don't care if it sits at idle for half an hour or so...the difference in fuel use is negligible. The debate will go on forever, but the one thing that really isn't in question is that starting is when most wear occurs, because things are spinning with zero oil pressure for a short period of time. Yes, there is residual lubrication if the engine has run recently, but it's not as good as having full pressure lubrication to keep bearings from contacting crank journals etc.