Hot take: You don't need to run a diesel engine for 10 minutes before you shut it down after a hard pull

Was working with a guy on a freightliner last week who idled for a solid 15 minutes after a tough climb. I told him the egr and turbo cooling systems handle that now on newer trucks. He argued until I pulled up the manual. Modern diesels cool down way faster through the oil system. Unless you were running it red hot for an hour straight you're just burning fuel. Has anyone else seen old school guys waste fuel on cool down?

2 comments

2 Comments

wyatt_green3119d ago

@victorb17 nailed it... it's the same thing with people who still let their truck warm up for 15 minutes on cold mornings like it's a 1980s carbureted engine. Times change and the tech changes but some folks just can't let go of what they learned twenty years ago. Burning fuel for no reason is always a bad look.

victorb1719d ago

Man, WHAT?! That guy actually sat there for 15 minutes idling after a climb? That's wild, lol. I feel like some of the old school guys just have these rules in their head and won't let them go no matter what the manual says. The cooling systems on modern trucks are so good now it's almost like they're designed to just shut down and handle it. Dude was probably burning through a gallon of fuel just to make himself feel better.