Okay, I have yet another question.

When I park the truck, how long should I let it idle before turning it off? Up until now, I've let it run probably 10 seconds on average. Is this enough time to let the heat escape?

This is part of my plan for the truck to last 500,000 miles!

Denis

 

Trick question Denis! You can really only tell by installing a pyro guage that measures the exhaust temperature entering the turbo. Without that, it's really only a guess. That said, when I finish my 40 mile daily commute, I leave the truck idle as I collect my briefcase, lunch, etc before heading in. The minute or so I give allows the turbo to spin down and things to cool slightly. Of course towing loads can drastically change the amount of time required for things to cool to a safe point.

 

also depends on where you're parking. If you come right off the freeway and right into a parking spot, you'll probably have to let it idle. If you have to low speed tool around a parking lot to get into a spot, it's probably ready to shut off immediately.

Either way, that's been way nicer to it than 'needed' according to Dodge. There's nothing in the owners manual that says you need to wait such and such a time b4 shutting down or you'll void your warranty.

 

Darn, I guess I need the gauges first after all! I never turn the truck off immediately after parking, so maybe I'm okay. Maybe to be safe, though, I'll let it run a full minute until I get a gauge.

 

Its really amazing how much heat is stored when you come off the highway. I found that to fuel up off of the highway I have to idle for at least 2 minutes to get the temps down below 350, and thats just empty doing 75 MPH and coming into a fuel stop just off the highway.

Toodling around town usually doesn't warrent more than a few seconds, unless you are drag racing for milk.

J-eh

 

Keep in mind that the truck shakes like a wet dog when you shut it off, so always shut it off with the doors closed. All that shaking just kills the hinges.

 

I climb a good sized hill just before I get to my driveway. It takes sometimes 30 seconds or so for the EGTs to get below 300.
When I get to work, the temps are good as soon as I'm backed into my parking spot.
So to answer the question of how long it takes is impossible without a gage.

 

that's easy, I never turn it off while fueling

 

I guess I really need the gauges.