Forum Discussion
Grit_dog
Mar 18, 2015Navigator II
I believe the emissions is relatively the same with exception of the added DEF injection. This also adds an ammonia sensor which I don't think was on the pre def trucks.
The new trucks are noticeably louder and I have heard the turbo on occasion at idle.
As far as mileage goes, the trucks I'm around only get 3-4mpg due to a lot of idling.
The intake can definetly get loud in the cold with the active intake heat management when it switches to pulling hot air from underwood.
The new trucks are noticeably louder and I have heard the turbo on occasion at idle.
As far as mileage goes, the trucks I'm around only get 3-4mpg due to a lot of idling.
The intake can definetly get loud in the cold with the active intake heat management when it switches to pulling hot air from underwood.
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