MPG = Air Resistance vs Speed vs Weight
Improving MPG had me wondering, so I found a definitive calculator to make the math easier. http://ecomodder.com/forum/tool-aero-rolling-resistance.php Vehicle weight [1]: 10,000lb (TV & TT) Crr ...
Forum Discussion
powderman426 wrote:
I saw no mention of gearing. My Buddy has the same truck setup as I do, except he has the 3.73 while I have the 4.10 and he beats me badly on mileage.
You would need to trade trailers for a trip and then compare. It could be driving habits, trailer differences, or simply that you don't need a lower rear end gear and you're spinning more RPM's then you really need for your trailer. Even then, MPG differences among different rear end gearing option are typically very marginal.
