Completly disagree with some comments here in regards to LMM trucks having "emissions issues" that are FIXED on LML trucks. Yes DEF improves mileage but it also brings with it a lot more sensors and with that comes an additional set of components that can fail thus putting the truck in limp mode. Lots of reports of DEF related issues still today in LML trucks. LMM trucks are nearly bullet proof and that's coming from an LML owner. And yes I've had to have a DEF tank replaced.
The LML is absolutely a more robust TV but to say it's emissions system is more reliable than an LMM is complete BS.
There are a LOT of high mileage LMM trucks on the road.
