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05quadratrac 03-07-2010 11:11 PM

MPG question for 4.7 guys.
Even when driving hard what kind of MPG do you guys see? With new M1 oil, new plugs, a k&n intake, and Magnaflow im still only seeing numbers in the 9mpg range, granted I use autostick a lot and i drive fast but shouldn't I be at least seeing numbers in the 10-11 range even during hard driving? I finally hit 11.3mpg on a 10 mile stretch of highway on my way paintballing but im still thinking I should be getting at least 12 city and maybe 15 highway. :confused:

Robert Palmer 03-07-2010 11:50 PM

Re: MPG question for 4.7 guys.
LOL. You drive fast, use autostick, and you expect good mileage? LMAO :lol:

Put the Jeep in [D] and drive slower and then you'll get better mileage.

SvenskaJeepGuy 03-08-2010 12:11 AM

Re: MPG question for 4.7 guys.
ditch the CAI, plus what joe said

robpp 03-08-2010 12:14 AM

Re: MPG question for 4.7 guys.
a mix of both i get 15-16. when i too k a road trip to the grand canyon we got over 20 avg for the trip. thats 07 4.7

SoCalMoparWK 03-08-2010 12:14 AM

Re: MPG question for 4.7 guys.
I'm getting 13-15mpgs. No joke. Once you get your superchip you'll see. The Mileage X aka gas saver mod helps alot. You still get alot of power, but way better mileage.

05quadratrac 03-08-2010 12:43 AM

Re: MPG question for 4.7 guys.
haha I know I should slow down some but I love to hear the exhaust. I plan on the superchip once my payments on the car are up in May, then I'll have an extra 570 a month in my pocket to play around with, I cant wait, srt reps, 08 intake, throttle body.....:D:D:D

jeepnjeep 03-08-2010 09:31 AM

Re: MPG question for 4.7 guys.
I don't drive nearly as agressivly as you but I'm not a light foot either. I get 12-13 local and highway is 19-20. All stock except a K&N drop in filter and bigger, more agressive tires. Ya gotta slow down a bit, Son!:D

twodot 03-08-2010 11:01 AM

Re: MPG question for 4.7 guys.
05 WK 27000 and with K&N I get 22 on highway and 17 in town. I do not hot dog it. The Jeep is not a Vette0

AcidCold 03-08-2010 11:09 AM

Re: MPG question for 4.7 guys.
13.5 city and 20 highway with 33'' tires. how you like them apples!? slow down!

05quadratrac 03-08-2010 12:44 PM

Re: MPG question for 4.7 guys.
It's not even so much speeding since it's really hard to even go the speed limit here with all the traffic its using the autostick and getting it up in the RPM's that is hurting me the most I think, I rarely leave 2nd around town.

Devilsmed98 03-08-2010 08:20 PM

Re: MPG question for 4.7 guys.
Shit 9mpg sucks, I had my 07 4.7 with 40k miles on it since November and I got around 13-15mpg driving around town. 17-20 100mile + trips. This is all with air dam off and a magnaflow free flowing muffler (which I like to stomp on cause the sound).

maxst2 03-08-2010 08:46 PM

Re: MPG question for 4.7 guys.
Just got mine with nearly 60k on the clock and I haven't done a thing to it- yet..planning 60k maintenance and CAI, did a hour and a half trip at 70mph and I got 20mpg AVG.

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