Do you leave your diesel running ...?
I see many diesel drivers who leave the engine running while fueling (or other short-term occasions). For a while, I asked why they did that, just to see what their reason was. Never got the same answ...
Forum Discussion
Grit dog wrote:
Who cares, and it will not help or hurt anything to shut it off or leave it running.
What does the owners manual of your diesel truck say?
