no, that is because they weigh 3,500 lbs and are pushing that much HP

I had 412 HP in my 2006 F-150 and I only saw a 0.5 MPG improvement with the Supercharger.


to get the higher HP, you have bigger CAMs & the injectors will be pumping more fueld. My 2009 Mustang GT can pull 30 MPG on the highway @ 3,600 lbs. But I get a solid 15 mpg city.



all about vehicle weight and loading. the 2009 Ram has a smarter sequential piston system and a better tranny. nothing to do with extra HP. all in the tuning. that is how Ford squeezed 1-2 more MPG out of the 2009 F-150. they are pulling a 15:1 A/F at times of no load