4.7L gas mileage...

[Bigdiesel74]

I'm getting around 13 mpg with my 4.7. i was wondering if this is normal for this engine and what i can do to get more mpgs

[Matt]

Over the past year on Jeep forums, it seems all engines (WK's) get around 13-16 mpg. Of course, this is purely independent due to the right foot theory. ;) :p

[Scottina06]

mine seemed to get around there too in town...stop and go driving

[Matt]

Yeah, I'm right at 15mpg. I tested the EVIC against real world application and the EVIC was off by about .3mpg (in the bad direction, lol).

[Scottina06]

best i ever got with my 4.7 was on a trip to SC....20-21

[AcidCold]

I get around 13.5 city and 19 highway with a light foot.

[FlyinRyan]

For what its worth, the testing we've done with the ported 4.7 TBs I've done, all of the customers have indicated about a 1 MPG increase. Of course this requires driving appropriately, but the gains for whatever reason are there.

[sousa]

I get about the same MPG according to the EVIC. The best I ever got was 19MPG on a long trip. I drive like an ass though....

[robpp]

i just returned from a 1600 mile road trip and I got over 20 in my 4.7 cruising 10 over wherever we went.

i saw a noticable increase when i loaded the superchips. but that trip was on a stock tune plus you can see my mods......

[mzh29]

I get right around 14 mpg, but i have the 93 superchips tune, cai, and a very heavy right foot. I mean i can barely lift it.

I did get 47mpg once according to the evic (reset the mpg calculator rolling down a really steep hill at 50 mph and foot off the gas:D)

[baronvonhavok]

in the city i get about 13-15 depending on how i drive and on the highway i usually get 20-21. this is with a K&N FIPK too.

[05wkguy]

I average 13-15 in town and about 22-23 on the highway (at 65mph). BUT, a cold-air-induction (CAI) should help a little and a better exhaust if you don't mind a bit more noise.

[jpvette]

Hello newbie here chiming in With my 4x2 Grand Cherokee Limited im getting right at 17 in town and upwards of 23-24 on the highway, I run both Lucas and Seafoam about every 7k miles through the system to stay on top of these marks. Some might say different, however the numbers dont lie 325 to 350 miles a tank. Reground Cams and home-made CAI.

[SoCalMoparWK]

cruise control is your best friend.

[SoCalMoparWK]

That must of been a very long down hill :lol:

I get right around 14 mpg, but i have the 93 superchips tune, cai, and a very heavy right foot. I mean i can barely lift it.

I did get 47mpg once according to the evic (reset the mpg calculator rolling down a really steep hill at 50 mph and foot off the gas:D)

[jeepnjeep]

Yup, about the same for me even with the slightly taller/wider /more agressive tires. 12 to 14 every day driving, 19 to 20 all highway.