Best magnum MPG?

ocdart said
I know this is 'apples and oranges' but, just for comparison, my '09 Ram 1500 with a 5.7 Hemi has shown a best of 25mpg freeway cruising at 65mph.
Fairly heavy, aerodynamic-deficient truck rated at 390hp. Can't ask for much better than that.

Different trans, apparently some of them have tall gears, and MDS- so it's farly different. Even the 4.7 has a different trans which can affect it. By far the majority of trucks I've seen had 3.55s, 3.54s, or 3.92s in them. All the V8 Jeeps had 3.73s back then.

Lelo Dart said
Same gears. 99 Dakota R/T. Whats a R/T CC? Really doesn't seem to matter how I drive, 14-16 mpg.

Club cab.

YY1 said
What gears do you have?

My 2000 R/T CC gets 14 in mixed driving, about 1/2 60+ MPH and 1/2 city stop and go.

Over on the Dak R/T forum, that was the best ever of all time!

3.92 rear but in O/D it's 2.7.

Truck weighed 4200 last time I took a load of scrap.

I've often thought of swapping in a 3.55 axle to see if there was a noticeable MPG gain or performance loss.

There's a guy in town that clams to have a '99 R/T CC special ordered with 3.19 gears.
I'd like to know what he's getting.

All R/Ts had the same gears. Chances are those "3.19" gears are three-nineties. The tall gear was 3.21, and supposedly some of those trucks/'Rangos got them- apparently Hemi trucks do too. 3.55s were horrendously common after the OD trans was intro'd. Your mixed would be mirroring that best.