Hello,

I am considering the purchase of a 2011 F-150 SuperCrew 4x4 with the 5.0 engine. I do not tow except occasionally, and same with heavy loads. I live in western PA, where we have hills. My driving is perhaps 60/40 highway/city. I am trying to figure out how much fuel economy I would sacrifice with the 3.73 gears over the 3.55. My sense is that the 3.55 is sufficient for my mission, but I might get some extra pull (and capability should my tow/haul behavior increase) with the 3.73--but I don't want to take a big hit in fuel economy since I do spend at least 50-60% of my time on the highway (sometimes more).

Any thoughts/direction would be appreciated.


Thanks,
JKG

 

if your willing to wait a while its only an extra $1000 for the eco-boost. That way the MPG with the 3.73 gears will be better. although im not sure how much the gears hurt the gas milage from 3.55 to 3.73.

 

I drive about 50/50 with 5.0 liter and am averaging about 16mpg. Hve seen mpg as high as 19.