Correct, it can be bewildering at times especially if the attention span just isn't there
Okay, I purchased the jeep and drove Sydney to Adelaide, then Adelaide, Alice Springs to Darwin in a 54 hour period covering some 4500kms and got to see what the vehicle was capable of.
10 fuel stops with 4 of those being top ups as precautions (due to location) to make scheduled refills. Fuel economy 620kms + per tank.
On arrival I had serviced Jeep at a garage (not stealership) in Darwin.
Economy is down (yes, town running will do it) to 400kms per tank. Have started driving to old fishing spots and average 310km round trips for the day and economy still poor (430kms).
Have started looking for possible problems, but it doesn't help if 'spares' jeep has a different o2 sensor for comparison sakes.
GC isn't idling rough, I did have the problem with the cooling system which seems to have been fixed and the only thing I have noticed is that on first start up of the day there is an over fueling smell of fuel which dissipates after 10 minutes or so.
After the service it really hasn't been the same. Garage indicated that they hadn't played with fuel system, but hadn't really all that much experience with Jeeps to begin with.