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  #1  
Old 06-01-2011, 04:59 PM
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Helping 2005 4.7 WK MPGs

Ok i know the deal everyone says dont buy a jeep for MPGs. Ive always had jeeps and i love my WK but with gas prices going up i just cant pay out almost $200 a week to keep it fueled up. I have no intention of selling it either.

The only mods ive done to it that IMHO would have any effect on mpgs is a K&N drop in air filter and custom exhaust. I have been really good for the last year or so not driving my jeep hard and just driving conservatively. Ive done spark plugs and all reg maintenance and changed all fluids. I have michelin tires in the stock size and i use 87 octane gas and mobile one extended performance oil.

Ive never had any check engine lights or major issues so far (knock on wood).


My WK is just a heavy drinker. What can i do that will make a significant difference? true CAI? Tune? Anything?

I average 13 mpg according to fuelley.com.
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-Kyle '05 Dark Khaki (PJT) WK Limited 4.7L V8, '08 Overland Front End, Custom Exhaust, 245/70/17 GY Silent Armors, Bilstein 4600s, K40 Calibre DL Radar Detector/Laser Diffuser, CB.
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  #2  
Old 06-01-2011, 05:10 PM
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Re: Helping 2005 4.7 WK MPGs

I really dont think there is much you can do to help your mpg's that you havent done. I would use some seafoam in your gas tank if you havent done a fuel system cleaner recently.
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Old 06-01-2011, 05:13 PM
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Re: Helping 2005 4.7 WK MPGs

May I ask what your EVIC says for MPG?
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Done: Tow Hooks, Amsoil Severe Gear 75w-140, Amsoil Air Filter, Amsoil 0w-20, Amsoil T-Case, NGK V-Power, Skid Plate Front and Front Engine, Front Hitch, Hypergrounding, Shorty Antenna, 2" Old Man Emu Lift, Nitto Terra Graplers, Rola Rack
Need to be Done:Magnaflow Muffler, Fuel & Tcase Skid Plate,
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Old 06-01-2011, 05:26 PM
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Re: Helping 2005 4.7 WK MPGs

i have the same engine as you and i average 16mpg when driving in the city and 22 on the highway driving at 65mph. do you have new plugs? do you drive it hard? mostly city?
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Old 06-01-2011, 06:49 PM
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Re: Helping 2005 4.7 WK MPGs

i get same as matt ^^^^^


superchips does have a mileage tune. i think a few others do as well/
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  #6  
Old 06-01-2011, 08:37 PM
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Re: Helping 2005 4.7 WK MPGs

Yea, I have the same engine also EVIC shows 16.3 daily driving with prob 60-70% country road driving stopping every mile. I am getting my superchip Friday I will let you know the results... Also I was getting 16.8-9 this week but that was very light on the throttle.
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2007 Jeep Grand Cherokee 4.7L, 4x4

Done: Tow Hooks, Amsoil Severe Gear 75w-140, Amsoil Air Filter, Amsoil 0w-20, Amsoil T-Case, NGK V-Power, Skid Plate Front and Front Engine, Front Hitch, Hypergrounding, Shorty Antenna, 2" Old Man Emu Lift, Nitto Terra Graplers, Rola Rack
Need to be Done:Magnaflow Muffler, Fuel & Tcase Skid Plate,
The Electronics:Escort 9500ix, 400 Watt Inverter, Rockford Fosgate P2, Viper 5901, CB Radio, DB Drive 6.5, SuperChips, Rigid Dually Flood (Front), Rigid Dually Diffused (Backup)
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  #7  
Old 06-01-2011, 08:40 PM
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Re: Helping 2005 4.7 WK MPGs

i got a 4.7 and i only average like 14 mpg on a good day lol
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Old 06-01-2011, 09:16 PM
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Re: Helping 2005 4.7 WK MPGs

Quote:
Originally Posted by lewi3069 View Post
Yea, I have the same engine also EVIC shows 16.3 daily driving with prob 60-70% country road driving stopping every mile. I am getting my superchip Friday I will let you know the results... Also I was getting 16.8-9 this week but that was very light on the throttle.
Let us know how that SC works out. I saw that for sale in the CL here but wasn't sure if it was worth it, looking for an economy tune here.
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Old 06-01-2011, 09:21 PM
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Re: Helping 2005 4.7 WK MPGs

I saw an increase when I changed everything to amsoil... I also did a trans change with valvoline...
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Done: Tow Hooks, Amsoil Severe Gear 75w-140, Amsoil Air Filter, Amsoil 0w-20, Amsoil T-Case, NGK V-Power, Skid Plate Front and Front Engine, Front Hitch, Hypergrounding, Shorty Antenna, 2" Old Man Emu Lift, Nitto Terra Graplers, Rola Rack
Need to be Done:Magnaflow Muffler, Fuel & Tcase Skid Plate,
The Electronics:Escort 9500ix, 400 Watt Inverter, Rockford Fosgate P2, Viper 5901, CB Radio, DB Drive 6.5, SuperChips, Rigid Dually Flood (Front), Rigid Dually Diffused (Backup)
Future Electronics: Mopar/Kicker 6x9 and dash, Scanner
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  #10  
Old 06-01-2011, 11:05 PM
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Re: Helping 2005 4.7 WK MPGs

I hear you on this, im looking on moving into a house and commute is going to force me to get a car since i'm the only income at the moment. + getting house and having a baby!

14 city and avg 20 hwy here... Not much you can do. Long runs on flat road i can get 23mpg hwy @ 70mph.

Face it...if you want awd you need to get a eclipse/talon, and as long as you don't boost it it'll get great mpg. That or a impreza... even then mpg's isnt much better.
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Old 06-01-2011, 11:12 PM
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Re: Helping 2005 4.7 WK MPGs

I get 12 city. Lol.
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  #12  
Old 06-01-2011, 11:13 PM
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Re: Helping 2005 4.7 WK MPGs

Last winter my lowest was 5mpg....yeah... FIVE.
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MODS:
Installed- HID 5000k kit in fogs, Superchips programmer,AFE stage 2 intake, Jet 180* Thermostat, De-badged, Flyin' Ryan Modified Throttle Body - Ported then bored out. Magnaflow muffler. Rola Roof basket, Stubby Antenna, bquiet sound dampening for the rear deck. Rigid led spots on rola rack.
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