wcjeep wrote:
Aftermarket EGT gauge. My EGT probe is installed preturbo. When it falls below 300 degrees I shutdown. There is some debate on installing the probe pre or post turbo. Part of the reason for the cooldown period is to make sure the engine oil that flows through the turbo does not keep cooking and leave deposits inside the turbo. The five minutes wait time you mentioned would also achieve 300 degrees or lower.
If you purchase an automatic transmission it's a good idea to monitor this too. Stock or modified.
Genosgarage.com is one of a few decent online places to purchase Dodge items.
X2!
I also have an EGT gauge, I make sure it is under 300 before shutdown. This is where having a diesel differs from a gas engine, I allow to idle before shutdown to 300 degrees, it is my guess this is why Ford had a valve issue with early 6.7 people just shutting down after a hard pull.