wolfe10 wrote:
Interesting-- been a very long time since I have seen a normally aspirated diesel on the road. What do you have???
And as already answered, with a turbo diesel the answer is "IT DEPENDS".
If you just climbed a 5 mile 6% grade and pull over in a scenic overlook, yes 3-4 minutes would be proper.
But, if you got off the highway and drove at low speed to the CG and checked in, the instant you get to your site turn it off.
As with most things, a little common sense goes a long way.
Different way to address the same issue is to cool the engine below 180F. Times will vary a lot depending on hills, ambient temp, etc.
BTW, Camp Frieghtliner suggested <180F