Base Idle, Fast Idle, Non Idle - Best Practices Diesel

Ozlander wrote:

holstein13 wrote:
Otherwise, I'll high idle (1,000 RPMs) or turn off the ignition (preferred).

I'm surprised you have an ignition switch on your diesel.
What is it's purpose?

Now you're picking nits. What I'm calling the ignition switch is the starter switch. It has a key in it and I use it to turn off and on the engine. It's not really an ignition system, per se. Although ignition does occur.