Jeep Garage  - Jeep Forum

Jeep Garage - Jeep Forum (
-   Engine Performance/Intake/Exhaust (
-   -   4.7l mpg (

turner1 09-01-2011 10:49 AM

4.7l mpg
hi every one im kinda new here and i have been reading other members threads about poor fuel econmy on their g.c. v-6 and v-8 i have a 4.7l with 58000 miles ,and all i have done since ive owned it was to replace all four o2 sensors, new stock spark plugs , and have a flowmaster muffler with duals out the back and my mpg are 22-23 hwy 16-17 city. i use to have a v-6 ford explorer that was getting the same kind of mileage. so im really happy with what im getting with my 4.7,,,,oh i almost forgot i have a k&n drop in air filter as well.

bsw989 09-01-2011 09:56 PM

Re: 4.7l mpg
I'm around 18-19 highway and somewhere in the 13-14 city range. PA/WV roads can be pretty twisted and hilly but anything even close to the 22 range seems pretty impressive to me.

Crestwood1001 09-01-2011 10:12 PM

Re: 4.7l mpg
Look at my sig, thats my average on hilly roads

2005JGC 09-01-2011 10:36 PM

Re: 4.7l mpg
Yeah my rough evic milage sticks around 15mpg... where I live my commute is up up UP and down down DOWN every day, no way around it, I probably have about 1200' in elevation change (up and down added together) every commute 5 days a week. In the city Ill quickly drop to high 13 range, if I am in a bad mood ill be in the 12's ;)

Im just at about 180k and still pluggin along!

Crestwood1001 09-01-2011 10:52 PM

Re: 4.7l mpg
Dont trust the evic, I do it with fuely and its quite a bit higher then my evic since it has no bias on the bigger tires

2005JGC 09-02-2011 03:19 AM

Re: 4.7l mpg
Yeah, I just use it as a reference to let me know when I need to chill out ;) ... I always calculate EVERY fill what my mpg was. Typically I am in the 14-15 range calculated.

swing4terps 09-02-2011 01:55 PM

Re: 4.7l mpg
Fuelly has got me a 14.3 AVG through 11 fill ups since 6/25/11. That's with a 55/45 city/hwy split. Highway miles are anytime I'm on the interstate. Most of my city miles are legit city miles with stop signs or traffic lights every block.

Crestwood1001 09-02-2011 02:19 PM

Click my fuely sig and look at the dates of my fill ups, I spent over 800$ in less then a month and a half on gas

Sent from my BlackBerry 9650 using Tapatalk

swing4terps 09-02-2011 02:45 PM

Re: 4.7l mpg

Originally Posted by Crestwood1001 (Post 477699)
Click my fuely sig and look at the dates of my fill ups, I spent over 800$ in less then a month and a half on gas

Sent from my BlackBerry 9650 using Tapatalk

That's pretty impressive, although not in a good way. Why do you fill up so frequently?

Fortunately my commute to work is only 3 miles, so despite the horrible city mileage, I can still get some decent time between fill ups. 09-02-2011 02:51 PM

Re: 4.7l mpg
unfortunately my 4.7 reads 8.2 right about now in the city. i'm going to have to stop looking at it because a little part of me dies every time i see it

01grand 09-02-2011 03:00 PM

Re: 4.7l mpg
I get around 14-15 mpg doing mostly city/suburb driving with my 4.7. I can get 20-21 on the highway if I am cruising for a long time. Mileage goes down in the winter due to gas blends and warm up time. Sounds like I need to redo my exhaust system soon to help increase mileage.

Crestwood1001 09-02-2011 04:27 PM

Re: 4.7l mpg
25 miles to work, 25 miles back from work=lots of gas lol

All times are GMT -5. The time now is 08:08 PM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community