Originally Posted by zabeard
only way to possibly go over 20-21 is the explorer express supercharger.
how do you increase your mpg by going to forced induction? i mean, you're shoving more air in there so in order to keep things from leaning out too much you've gotta shove some more gas in there too.
i see the argument from the other side: more power equates to less stress on the right pedal, but that just doesn't hold up.
go talk to an audi owner and see which gets better mileage, the 2.8 or the 2.7 biturbo, or the 4.2 in the S4/S6/A8 or the 4.2 biturbo in the RS6.
turbochargers and blowers will not help your fuel economy by themselves. your best bet is to grab a tonneau, be easy with the air conditioning, keep up with your tune-ups and just take 'er easy on the gas pedal.