Kayteg1 wrote:
Years ago I switched from F450 to F250 and F250 pulled the 18,000lb trailer just fine (same 7.3l engine on both) while delivering way better mpg.
Pickups are over-geared from the factory IMHO and what is nice on passing, is always biting you at fuel pump.
Based on my research with lots of owners posts who pull large trailers, there is barely any difference in mpg under a heavy load due to gearing and in some cases, higher gearing can actually perform better until the speed goes pretty high because the effective rpm is essentially the same. Only the gear changes. If we are talking about flat land and light loads that goes out the window.
I am wondering what you are calling "way better mpg".
I think many people think the biggest impact on mpg for TCs is DRW vs SRW. Of course, we have empirical data because essentially nobody has every model of truck with every size load and with every terrain. :)
