Terrible fuel economy
#1
Terrible fuel economy
Hi guys im new to the dodge scene just bought my first dodge 2004 5.7l 4x4 It has 120k on it. I'm getting 8.8mpg I manually calculated it. The best Ive got was 10.4mpg when I was driving like a granny. I have KnN intake, Cat Back Magna flows, I checked a few plugs none of them are fouled. Any advice would be appreciated
#6
I'm kinda in this same boat. My 07 4x4 has 55k miles on it and I've been gettin 7.5 (so my computer says). I did get bigger tires and haven't gotten it recalibrated yet however I did the math and I'm 99% sure that the recalibration will only add about .5 MPG. I just got the truck 5 months ago and am not sure what the previous (original) owner had done on it. I just changed my plugs myself from the stock champion coppers and put in champion double platinums. It does seem to run a little smoother but still not sure about the MPG because I only changed them last week but so far its at 12 and still dropping slowly after a long highway drive.
Maybe a tune up would do the trick?
No lift but I do have 285/70/R17's
Maybe a tune up would do the trick?
No lift but I do have 285/70/R17's
#7
Join Date: Jul 2007
Location: South Georgia/East Florida
Posts: 24,686
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I'd say something would be in order.
I get about 13 mpg in over-all use and hit about 16.5 on trips that are mostly interstate and highway driving and my truck weighs in at about 7000 lbs. with me in it, my toolbox jammed with heavy sh*t, a full sub-frame on my suspension lift, winch, etc. I do have a few mods that may be giving a little mpg side benefit along with the power gains...
I get about 13 mpg in over-all use and hit about 16.5 on trips that are mostly interstate and highway driving and my truck weighs in at about 7000 lbs. with me in it, my toolbox jammed with heavy sh*t, a full sub-frame on my suspension lift, winch, etc. I do have a few mods that may be giving a little mpg side benefit along with the power gains...
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#8
#9
I'm kinda in this same boat. My 07 4x4 has 55k miles on it and I've been gettin 7.5 (so my computer says). I did get bigger tires and haven't gotten it recalibrated yet however I did the math and I'm 99% sure that the recalibration will only add about .5 MPG. I just got the truck 5 months ago and am not sure what the previous (original) owner had done on it. I just changed my plugs myself from the stock champion coppers and put in champion double platinums. It does seem to run a little smoother but still not sure about the MPG because I only changed them last week but so far its at 12 and still dropping slowly after a long highway drive.
Maybe a tune up would do the trick?
No lift but I do have 285/70/R17's
Maybe a tune up would do the trick?
No lift but I do have 285/70/R17's
#10
Hi guys im new to the dodge scene just bought my first dodge 2004 5.7l 4x4 It has 120k on it. I'm getting 8.8mpg I manually calculated it. The best Ive got was 10.4mpg when I was driving like a granny. I have KnN intake, Cat Back Magna flows, I checked a few plugs none of them are fouled. Any advice would be appreciated
Tune it up, pump the tires up 40psi, synthetic motor oil, and hope for the best.