Thanks for your input TNC. I have been shifting just to keep MDS from engaging and I do like the concept of MDS but can't get used to the vibration sound and feel. I love the feel of this 5.7 smooth power and I suppose if I cared to much about gas milage, I would of purchased a 4 cylinder. I am currently getting about 17.5 mpg with about 75% of it highway miles without MDS engaged so for this size engine, power and everything else this truck has to offer, I'm happy. I hope to read more comments and any new post from
members experience with there MDS.