Getting 10.5 all city, 300 miles on it, 87 octane. That was before CAI, next fill up will reset MPG.

 

2013 R/T AWD

before HT interceptor - mostly driving in "manual" mode-
11MPG

after HT interceptor - still mostly manual mode - 11-12.5 MPG

after HT interceptor - mostly auto mode ("D") for the last 1-2 weeks - just hit 14MPG !

never reset the MPG clock but might now that my habits and style has changed - still its rising regularly

I do 20-22 miles each way (so 45-50 total miles driven per day, 40-45 of those on the moderate traffic GS parkway)

 

I'm getting about the same 16.5 - 17.5 so far with my hemi citadel. I did notice better fuel economy using 89 vs 87 but about the same on 93 as 89. Once I get my tuner and CAI I'm sure my foot will drop my numbers. Does changing the intake change the sound of the motor? Like sucking air or more growl? The tuners claim to increase fuel economy but I've yet to hear real world results.

 

the CAI (i can speak for the k&N) absolutely added
some more growl somewhere...the sound is much more of a low note. aggressive - mostly at WOT or above 3500-4000 RPM but to a much lesser extent you can hear it sooner as well

 

That's exactly where I was prior to CAI and HI. Now I'm averaging 12.4 no matter what I do, all city driving. Only time its been on the highway was to come home from the dealer in Maryland, 245 miles.