The life of a Magnum (and 46RE question)

On the magnums I've found through personal experience that the 3.9 gets about 18 MPG. The 5.2 gets about 16 MPG and the 5.9 gets about 14 MPG- all with O/D.

I remember extensive testing of the 4.7 vs the 5.9 at the strip when the .7's first came out. 4.7 had more power sooner but lees up top and not as much total. With RC Dakota's the 4.7 won in the quarter almost every time. CC was a different story.

My work truck (Dakota CC) has a 3.7 and has so far been trouble free at 55,000 miles.
18 MPG and feels fairly strong for a six, a lot stronger than the 3.9s I've driven.

Of the batch, I think the 4.7 is the worst. I don't think the 5.7 has nearly the issues, and IIRC is a totally different design despite the cute .7 family displacement adherence.

I sure wish they had called it the 357 Magnum :)

Also IIRC 92 only 5.2 was rated 235 HP (on account of 3" or so exhaust and larger manifolds) all others, I wanna say 215. Most if not all 5.9 Magnums were rated 245. All NET.