To Idle or Not??

[Papa Rick]

When I get to the job Log Mill, I let my Truck idle for a few minutes to let it cool down and shut it off. Once I shut it off with the temp at 195 and cranked it up after 3 minutes and it didn't seem to want to crank real easy.

Sometimes I sit in line for 10 minutes to 2 hours waiting to get unloaded, and my question is this:

What is best for the truck, in other words if I know I am going to be sitting for only 5 minutes is is best to shut off and crank up or let it be longer or shorter.

Sometimes if the line is long, I will move up 1 Tractor Trailer Length every 5 minutes, until I get to the loader to get unloaded which could take up to 2 hours to get there.

I don't keep it running for the A/C as mine does not work.