There are lots of threads on the highest mpg. Let's see how low can we go!

 

The 6.4s at work are steadily in the 6-8 mpg territory. Obviously this isn't a 6.4 in the pic, but this is how they are outfitted. Very heavy and most likely over weight. They have gone to v-10s. They are 5-6 mpg in the same setup.

 

if I am driving around town which consists of driving a block or two then hitting a red light....sitting at idle til the light turns green.....going a few more blocks and hiting another light....etc, I'm likely to be in the low 9's. on the parkway and at 60, im seeing 14's. Im drivng a 2010 f-450 with the 6.4 stock and 85K miles. 19.5 rims (10 bolt)