This is my first post so I'm not entirely sure that I'm posting in the correct spot. Anyways, I have a 07 X with 64k miles, 2.5 lift and 33's.
After I first got the 33s put on, I went down to a Jeep event. Was getting 19.1 MPG on the way there (two hour drive. Usually, around town I averaged 17.8 ish). On the offroad course, the dude in front of me gets stuck pretty deep and needs to be pulled out. Afterwards, one of the guys working the event tells me to punch it to make sure I don't get stuck in the hole. I do exactly that. Hit it pretty hard. Could I have messed something up there? I noticed a big drop in MPG (in my mind) and loss of power on the way home. At first I thought it was probably because alignment was off and the Jeep was full of mud. 9 months later I'm averaging 16.4. 16.8 on long trips. I'm in FL, so the terrain is pretty flat, but any type of incline on the highway and I lose speed.
Basic stuff I've done so far: air filter, spark plugs and wires, alignment, throttle body, oil (sea-foam before hand).
My car knowledge is pretty limited, but if you all have any advice at all them I'm willing to listen. I understand bigger tires, lift, and wind can bring down the MPG (and the fact that it's a Jeep), but I was getting 19.1 before with the same setup I have now....and that was nice.
Edit: Would be probably good to add that I took it to Jeep and they pulled the codes and couldn't find anything wrong....not really sure they actually did any kind of inspection other than trying to pull codes.
Last edited by dallas_; 07-30-2014 at 07:10 AM.